[Bug 1697701] Re: Wacom tablet cannot Map to Monitor properly with dual/multiple monitors/screens
It's fixed by upstream. Manjaro 17.1.6 Gnome is working as expected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1697701 Title: Wacom tablet cannot Map to Monitor properly with dual/multiple monitors/screens To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-control-center/+bug/1697701/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1535048] Re: i915 driver seems to cause system crash at random
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 New test result today seems to be a intel P-state related problem. I had reverted everything to their default state, with only the following changes in TLP settings: /etc/default/tlp # Set Intel P-state performance: 0..100 (%) # Limit the max/min P-state to control the power dissipation of the CPU. # Values are stated as a percentage of the available performance. # Requires an Intel Core i processor with intel_pstate driver. CPU_MIN_PERF_ON_AC=100 CPU_MAX_PERF_ON_AC=100 CPU_MIN_PERF_ON_BAT=100 CPU_MAX_PERF_ON_BAT=100 Now the machine never crashed no matter what tricked I played against it. This workaround seemed to work both under a normal Linux kernel and a realtime kernel. I guess the crash was triggered by flipping the P-state to save power. In the previous report I was using WebGL Aquarium to do the test, which has a rather linear stress. But later when I was using Krita, whose stresses on the CPU comes in spikes, the old workaround failed to work. When connecting to an external monitor, it also did not crash anyway but I guess it was using full power all the way because of the dualview requires that much power. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1535048 Title: i915 driver seems to cause system crash at random To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1535048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1535048] Re: i915 driver seems to cause system crash at random
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 I did a few more tests. On my system, the combination of a realtime (lowlatency) kernel and certain tlp settings fixed the random crash. Although the side effect was the machine can get very hot because CPU threads cannot be turned off. Processor: Intel® Core™ i7-6567U Graphics: Intel® Iris Graphics 550 (Skylake GT3e) Linux kernel: 4.11.12-1-rt16-MANJARO TLP modified settings (/etc/default/tlp): SCHED_POWERSAVE_ON_AC=0 ENERGY_PERF_POLICY_ON_AC=normal Note: this combination also solved the intel 8265 bluetooth random disconnection and reconnection failure on this machine. All these tests were carried out on Manjaro, but I did suffered similar problem when I was testing Ubuntu 17.10. I hope my information can be helpful. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1535048 Title: i915 driver seems to cause system crash at random To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1535048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1535048] Re: i915 driver seems to cause system crash at random
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 If you were testing on a laptop without a power supply connected, there is an additional TLP settings change: SCHED_POWERSAVE_ON_BAT=0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1535048 Title: i915 driver seems to cause system crash at random To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1535048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1535048] Re: i915 driver seems to cause system crash at random
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 On my system: 1) the problem doesn't seem to be related to i915 firmware (which the archlinux report I mentioned) 2) the problem seems to be triggered by a spike in CPU/GPU stress, it can be triggered by two kinds of actions in particular: disk partitioning / OpenGl accelerated applications 3) the problem is fixed when a realtime Linux kernel is being used I highly suspect this to be a bug in Linux power management for Skylake. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1535048 Title: i915 driver seems to cause system crash at random To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1535048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1535048] Re: i915 driver seems to cause system crash at random
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 Here is the crach log and further discussion linked by the bug reporter on archlinux: https://github.com/nisenbeck/ct-server-2016-jessie/issues/1 ** Attachment added: "intel_crash.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1535048/+attachment/5012275/+files/intel_crash.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1535048 Title: i915 driver seems to cause system crash at random To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1535048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1535048] Re: i915 driver seems to cause system crash at random
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 I have a machine with intel Skylake and it is suffering random reboot. Although I'm not familiar with hardware side of things, please let me know if there is anything I can help. Meanwhile, the archlinux community has a similar report but they suspect i915 firmware. https://bugs.archlinux.org/task/53227 ** Bug watch added: github.com/nisenbeck/ct-server-2016-jessie/issues #1 https://github.com/nisenbeck/ct-server-2016-jessie/issues/1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1535048 Title: i915 driver seems to cause system crash at random To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1535048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1697701] Re: Wacom tablet cannot Map to Monitor properly with dual/multiple monitors/screens
Marked the affected package to mutter as described in https://bugzilla.gnome.org/show_bug.cgi?id=782032 ** Also affects: mutter (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1697701 Title: Wacom tablet cannot Map to Monitor properly with dual/multiple monitors/screens To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-control-center/+bug/1697701/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1697701] Re: Wacom tablet cannot Map to Monitor properly with dual/multiple monitors/screens
There was a similar bug reported to Gnome with more technical description: https://bugzilla.gnome.org/show_bug.cgi?id=782032 ** Bug watch added: GNOME Bug Tracker #782032 https://bugzilla.gnome.org/show_bug.cgi?id=782032 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1697701 Title: Wacom tablet cannot Map to Monitor properly with dual/multiple monitors/screens To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-control-center/+bug/1697701/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1697701] [NEW] Wacom tablet cannot Map to Monitor properly with dual/multiple monitors/screens
Public bug reported: In Ubuntu Gnome 17.04, Wacom tablet cannot be properly mapped using the "Map to Monitor" dialogue provided by gnome-control-center's Wacom panel. It's always mapped to the first monitor, and the ratio is incorrect. Both Wayland and Xorg sessions are affected. It has never happened with Gnome 3.20, 3.22. >From my experience with a similar problem in the past, I suspect the problem >has something to do with: 1) gnome-control-center 2) gnome-settings-daemon (g-s-d) 3) mutter My hardware setup: 1) Cintiq 13HD (1920x1080, HDMI through adaptor) 2) NEC PA242W (1920x1200, Displayport) 3) Intuos 4M 4) AMD FirePro W5100 (4 DisplayPorts) Another hardware setup with different GPU and display but has the same result. 1) Dell 2209WA (1680x1050, DVI) (Office) 2) AMD Radeon R7 250E (DVI, DisplayPort) (Office) Detail: 1) When "Map to single monitor" is OFF, Intuos 4M's cursor moves between both monitors. 2) When "Map to single monitor" is ON, Intuos 4M's cursor moves ONLY on the first monitor(that connects to the GPU output of the highest priority). 3) For example, my GPU has 4 DisplayPort outputs, when I turn on "Map to single monitor", my Intuos 4M is always mapped to whatever on DisplayPort-1 regardless of what I choose in Display Mapping dialogue's output droplist. 4) When a secondary monitor is present, cursor on Cintiq is not aligned with the pentip. Both of the single monitors are 16:10, Cintiq 13HD is 16:9. I suspect this to be relevant with this bug. ** Affects: gnome-control-center (Ubuntu) Importance: Undecided Status: New ** Summary changed: - Wacom tablet cannot properly Map to Monitor properly with dual/multiple monitors/screens + Wacom tablet cannot Map to Monitor properly with dual/multiple monitors/screens -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1697701 Title: Wacom tablet cannot Map to Monitor properly with dual/multiple monitors/screens To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1697701/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1247169] Re: pam_ssh does not add key to agent in (K)Ubuntu 13.10
I always encounter this bug on every Ubuntu released after its discovery. I have to use RSA key to SSH everyday and it annoys me to no end. Comment 9 helped me to workaround this bug though. That's a start! -_- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1247169 Title: pam_ssh does not add key to agent in (K)Ubuntu 13.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libpam-ssh/+bug/1247169/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1514990] Re: Primary screen not listed in Gnome color manager
I dicovered that "sudo colormgr get-devices" listed my devices, while "colormgr get-devices" does not. Is this a privilege issue? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1514990 Title: Primary screen not listed in Gnome color manager To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/colord/+bug/1514990/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1514990] Re: Primary screen not listed in Gnome color manager
I upgraded to colord 1.2.12-1ubuntu1 from Xenial and this issue is solved after that. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1514990 Title: Primary screen not listed in Gnome color manager To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/colord/+bug/1514990/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
I thoroughly tested the patches when the bug happened to me before. The same kind of stuttering never happened again after the fix was released. I suppose the newer reports are not related to this bug. Please understand not all choppy audio has the same source. You may troubleshoot over these things: 1) Turn off Wireless and Bluetooth. CSR Bluetooth adapters are more stable. Broadcom to my experience is very bad at this. Realtek wifi chips are kinda bad, too. 2) Do not use USB hub, or make sure it is sufficiently powered (>500mA per port, >2A DC adapter). 3) Make sure the playback samplerate is native of the device. Pulseaudio's SRC could introduce stuttering. If your DAC is 48K by default and you output 44.1K to Pulseaudio, it can chop things up. 4) Do not use aggressive power save options in your BIOS. 5) Try plug the DAC on USB2.0 only ports, not USB3.0 ports. Many USB3.0 ports are running on 3rd party chips. Hope it helps! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1514990] Re: Primary screen not listed in Gnome color manager
I can confirm this bug from Ubuntu Gnome 15.10, after all newest packages installed. This did not happened in 14.04.x and 15.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1514990 Title: Primary screen not listed in Gnome color manager To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/colord/+bug/1514990/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1514990] Re: Primary screen not listed in Gnome color manager
There is a terminal command: colormgr get-devices I wonder it list anything on 15.10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1514990 Title: Primary screen not listed in Gnome color manager To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/colord/+bug/1514990/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
@Andrejs I'm using Trisquel 6.0 (Ubuntu 12.04 based) + Linux-libre 3.11.x / 3.12.0, it works fine for me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
No regression saw here. I'm using Linux Libre kernel 3.10.1 X64. I think it is a bad idea to connect an USB DAC through a HUB, though. Even a mouse gets choppy from time to time in spite of being the only thing on a HUB. The last time I did this I was still using Windows 7 and it didn't work for me either. After that I only use HUB for USB storage device. I guess USB HUB is not ideal for real time purpose because it increases DPC Latency. And USB DACs are generally very sensitive to DPC Latency. There might be changes in the kernel about CPU frequency control that caused your problem, which is a different issue of what we had discussed on this page. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Today the revert landed on kernel v3.10-rc5. http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10-rc5-saucy/ I've tested it and it worked. Finally I can use my DAC again. It had been half an year since. Thank you all guys! :) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Thank you for looking into this bug, Alan! Thank you for building those kernels for us to test, Joseph! And thank you Tim for testing the debug kernel because I couldn't risk breaking my working machine at the moment. :) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Hello Joseph, The not-reverted debug kernel that you had just built fails to boot on my system. http://kernel.ubuntu.com/~jsalisbury/lp1136110/commit-not-reverted/ I don't know much about this, but the file size for the images are very different to the reverted ones. (reverted: 13M/30M) (not-reverted 7M/64M) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
It seems that Alan's asynchronous DAC is not the only one that worked fine. My friend has an Arce MDAC2 which however is labeled asynchronous, not affected by this bug. That DAC supports only two sample rates: 44100Hz and 48000Hz at 16bit. I happen to know it use a BB PCM1792 as its DAC chip, but not sure about the USB controller chip. It might be BB PCM2707. Arce MDAC2 has a BB SRC4392 that asynchronously upsamples input audio to 192Khz to reduce jitter, which is the reason it's labeled asynchronous. I searched google and find this article: http://www.pstracks.com/pauls-posts/myth-asynchronous-dac/6291/ Now, many DACS have asynchronous USB inputs, but that doesn’t mean they are an asynchronous DAC. To qualify as an asynchronous DAC, every input of the DAC (not just the USB) would be asynchronous – where the designer would throw away the source clock and rely only on the DAC’S internal clock. There are scarce few of these around. According to this article, since Arce MDAC2 is still using the source clock, it can not qualify as a real asynchronous DAC. As for the CONFIG_USB_DEBUG enabled kernel, I haven't built a linux kernel before, but I'll try to figure it out later. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
I took a look in the information of the commit that caused the regression: https://patchwork.kernel.org/patch/2164101/ And I think there are some details to report: 1) So far as I know, the affected Asynchronous DACs are all USB 1.1 devices, and therefore low-speed (despite being labled as full speed). 2) A Synchronous USB connection uses a one way digital connection for music playback, while Asynchronous mode has a feedback loop so that the amount of data in the frame can be controlled (because an Asynchronous DAC has its own clock which is not synchronized with the host clock). Since there is extra bandwidth needed by the control here, I wonder if the two modes have different true bandwidth for payload data. 3) The crack noise sounds very similar to what caused by a wrong buffer- size setting. I can make the same noise with an unaffected kernel if the ALSA/PulseAudio buffer setting is too small. Combining 2) and 3) and the patch description, is it possible that the choppy playback is caused by data overflow or partially dropping package content because Asynchronous mode provides less bandwidth than a normal (synchronous) connection? I'm not a hardware professional, so I can only make some guesses here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Sorry for overlooking part of the request in comment #71. I have done an extra usbmon trace using the following kernel, which is not affected by this bug: $ uname -a Linux tysontan-ThinkPad-X201-Tablet 3.5.0-25-generic #39-Ubuntu SMP Mon Feb 25 18:26:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Using the mehtod described in the following URL: https://www.kernel.org/doc/Documentation/usb/usbmon.txt The raw file is attached in this comment. ** Attachment added: usbmon trace result of Arce MDAC5 (unaffected kernel) https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3648880/+files/2.mon.out -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Here is how I tested with usbmon trace: 1. Start PC with USB DAC is on. 2. Start 'cat' to trace USB. 3. Start Jack Audio Connection Kit Service (which ensures the audio stream is bit exact, sample rate exact). 4. Start Clementine. 5. Play a song for a few second, stop. 6. Play another song for a few second, stop. 7. Stop Jack Audio Connection Kit service. 8. Ctrl-C to stop 'cat' tracing USB. 9. Retrive the newly created raw file. Additional information: With unaffected kernels, when I start to play a song or double click to switch between songs during a current playback, an asynchronous USB DAC would produce one-second crack noise at the beginning of a song, while the main session of the playback is normal. Using Jack Audio Connection Kit as the audio service eliminates this one-second noise. A synchronous USB DAC does not produce such a noise, regardless of audio service I used. With affected kernels, there is a very tiny chance that the bug does not occur when I start to play a song. When that happens, double click to switch between songs does not cause that one-second noise at the beginning of a song. However, if I stop the playback completely, the next playback would very likely be affect by the reported bug again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
I have tested the following packages: linux-headers-3.8.0-19-generic_3.8.0-19.29~lp1136110v1_amd64.deb linux-headers-3.8.0-19_3.8.0-19.29~lp1136110v1_all.deb linux-image-3.8.0-19-generic_3.8.0-19.29~lp1136110v1_amd64.deb linux-image-extra-3.8.0-19-generic_3.8.0-19.29~lp1136110v1_amd64.deb They are not affected by the bug. Thank you for building the test kernels! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Alan Stern I have done an usbmon trace using the following kernel $uname -a Linux tysontan-ThinkPad-X201-Tablet 3.5.0-28-generic #47-Ubuntu SMP Tue Apr 9 19:03:54 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Using the mehtod described in the following URL: https://www.kernel.org/doc/Documentation/usb/usbmon.txt The raw file is attached in this comment. ** Attachment added: usbmon trace result of Arce MDAC5 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3648815/+files/1.mon.out -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
I have also captured the USB device information of my test environment, just in case it's going to be needed, using CLI command sudo lsusb -v . Those information is saved as a text file and uploaded as the attachment of this comment. Hope the information I had collected can be useful. Thanks in advace! ** Attachment added: lsusb information of Thinkpad X201T + Arce MDAC5 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3648816/+files/lsusb -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Joseph Salisbury OK, thanks for helping us to build all those bisect kernels! :) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
I have tested the following commit: 78796ae17eacedcdcaaeb03ba73d2e532a4c8f83 filename: linux-image-3.8.0-030800rc5-generic_3.8.0-030800rc5.201304101508_amd64.deb This kernel is not affected by the bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
I have tested the following commit: b09a61cc0bc2a7151f4ab652489e85253d5d0175 This kernel is not affected by the bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
I tested the following commit: 3e619d04159be54b3daa0b7036b0ce9e067f4b5d filename: linux-image-3.8.0-030800rc5-generic_3.8.0-030800rc5.201304051428_amd64.deb This commit is affected by the bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
I've tested the following commit: f292e7f9fb0e4bec68bbd83443407d6bb7922d36 filename: linux-image-3.8.0-030800rc5-generic_3.8.0-030800rc5.201304041308_amd64.deb This commit works normally. Not affected by the bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
##CLI COMMAND grep device.buffering -B 10 ##RETURNS I: [pulseaudio] sink.c: device.bus_path = pci-:00:1a.0-usb-0:1.5.4:1.0 I: [pulseaudio] sink.c: sysfs.path = /devices/pci:00/:00:1a.0/usb1/1-1/1-1.5/1-1.5.4/1-1.5.4:1.0/sound/card1 I: [pulseaudio] sink.c: udev.id = usb-Arce_MDAC_5.01-00-M501 I: [pulseaudio] sink.c: device.bus = usb I: [pulseaudio] sink.c: device.vendor.id = 0451 I: [pulseaudio] sink.c: device.vendor.name = Texas Instruments, Inc. I: [pulseaudio] sink.c: device.product.id = 1020 I: [pulseaudio] sink.c: device.product.name = MDAC 5.01 I: [pulseaudio] sink.c: device.serial = Arce_MDAC_5.01 I: [pulseaudio] sink.c: device.string = front:1 ...(continue below) ##OLD KERNEL BUFFER SIZE I: [pulseaudio] sink.c: device.buffering.buffer_size = 1048572 I: [pulseaudio] sink.c: device.buffering.fragment_size = 524286 ##NEW KERNEL BUFFER SIZE I: [pulseaudio] sink.c: device.buffering.buffer_size = 529200 I: [pulseaudio] sink.c: device.buffering.fragment_size = 264600 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Joseph Salisbury I have just tested 3296944e29a048c06c5d724ef5c2c8c6e1297161, This commit works normally without being affected by the bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
I tested the following commit: 200e0d994d9d1919b28c87f1a5fb99a8e13b8a0f filename: linux-image-3.8.0-030800rc5-generic_3.8.0-030800rc5.201304031425_amd64.deb This commit is affected by the bug. P.S. Please move each of those packages into their own directory. As the number of files increased, I begin to have difficulty finding the right one to download...^^b -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Joseph Salisbury Thank you for building the test kernels! :) On my setup, I can confirm the kernel of commit: ff7c60c580d9722f820d85c9c58ca55ecc1ee7c4 is affected by the bug. Jan I think Joseph is trying to narrow down which modification to the newer kernels that has actually caused the regression. I suppose these bisect builds are made by including suspected modifications one by one to the originally unaffected v3.8.0-rc6 kernel, so that way we can singled out which modification is the real cause. After that, we can probably fix it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Tim Richardson In my case I have tested the AMD64 builds only. On the v3.8.x branch this bug has appeared since v3.8.0-rc7, every AMD 64 kernel since that version is affected, including v3.8.4 . ** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 AMD64. Ubuntu 13.04 AMD64, daily build as new as 20130314. 2) The version of the package used linux-image-3.5.0-26-generic linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/ linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/ This bug had been confirmed appearing after the following kernel upgrade step: v3.5.0-25 v3.5.0-26 ~ v3.5.0-27 v3.5.7.5 v3.5.7.6 ~ v3.5.7.8 v3.7.6 v3.7.7 ~ v3.7.10 v3.8.0-rc6 v3.8.0-rc7 ~ v3.8.4 The v3.9 branch has been affected since its very first release. v3.9-rc1, v3.9-rc2, v3.9-rc3 v3.9-rc4 are all affected. 3) What you expected to happen When using a USB DAC to play audio, the audio should be played normally without any interruption. 4) What happened instead This bug seems to affect only a certain kind of hardware, which is called Asynchronous USB Digital Audio Codec (DAC). It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called Synchronous USB DAC, uses the clock hosted by the mother board, which is not affected by this bug. When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays. Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set. I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug. Affected Devices: Arce MDAC5 Arce MDAC mini Ayre Acoustics QB-9 + Dragonfly USB DAC Musical Fidelity v2 DAC USB Audio Streaming Controller on affected devices: Texas Instrument TAS1020 http://www.ti.com/product/tas1020 Audio DAC on affected devices: Texas Instruments PCM1742 http://www.ti.com/product/pcm1742 This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) 3.7.6 3.7.7 (and all 3.7.x above) 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) I used Kdiff to find the similar patches, and find the following patches suspicous: USB: XHCI: fix memory leak of URB-private data (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix for leaking isochronous data (appeared in 3.7.7/3.8.0-rc7) usb: Prevent dead ports when xhci is not enabled (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) usb: Using correct way to clear usb3.0 device's remote wakeup feature (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: remove ASS/PSS polling timeout (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: unlink one async QH at a time (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: fix timer bug affecting port resume (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix bug in scheduling periodic split transfers (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) Hope someone can look into this bug soon! --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: tysontan 2117 F pulseaudio /dev/snd/controlC1: tysontan 2117 F pulseaudio /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 RelatedPackageVersions: linux-restricted-modules-3.5.0-26-generic N/A linux-backports-modules-3.5.0-26-generic N/A
[Bug 1136110] Re: USB Audio Codec choppy playback
Tested with Linux kernel v3.8.5, problem remains. Added Dragonfly USB DAC into the affected device list. ** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 AMD64. Ubuntu 13.04 AMD64, daily build as new as 20130314. 2) The version of the package used linux-image-3.5.0-26-generic linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/ linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/ This bug had been confirmed appearing after the following kernel upgrade step: v3.5.0-25 v3.5.0-26 ~ v3.5.0-27 v3.5.7.5 v3.5.7.6 ~ v3.5.7.8 v3.7.6 v3.7.7 ~ v3.7.10 - v3.8.0-rc6 v3.8.0-rc7 ~ v3.8.4 + v3.8.0-rc6 v3.8.0-rc7 ~ v3.8.5 The v3.9 branch has been affected since its very first release. v3.9-rc1, v3.9-rc2, v3.9-rc3 v3.9-rc4 are all affected. 3) What you expected to happen When using a USB DAC to play audio, the audio should be played normally without any interruption. 4) What happened instead This bug seems to affect only a certain kind of hardware, which is called Asynchronous USB Digital Audio Codec (DAC). It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called Synchronous USB DAC, uses the clock hosted by the mother board, which is not affected by this bug. When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays. Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set. I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug. Affected Devices: Arce MDAC5 Arce MDAC mini Ayre Acoustics QB-9 Dragonfly USB DAC Musical Fidelity v2 DAC USB Audio Streaming Controller on affected devices: Texas Instrument TAS1020 http://www.ti.com/product/tas1020 Audio DAC on affected devices: Texas Instruments PCM1742 http://www.ti.com/product/pcm1742 This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) 3.7.6 3.7.7 (and all 3.7.x above) 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) I used Kdiff to find the similar patches, and find the following patches suspicous: USB: XHCI: fix memory leak of URB-private data (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix for leaking isochronous data (appeared in 3.7.7/3.8.0-rc7) usb: Prevent dead ports when xhci is not enabled (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) usb: Using correct way to clear usb3.0 device's remote wakeup feature (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: remove ASS/PSS polling timeout (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: unlink one async QH at a time (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: fix timer bug affecting port resume (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix bug in scheduling periodic split transfers (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) Hope someone can look into this bug soon! --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: tysontan 2117 F pulseaudio /dev/snd/controlC1: tysontan 2117 F pulseaudio /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 RelatedPackageVersions: linux-restricted-modules-3.5.0-26-generic N/A linux-backports-modules-3.5.0-26-generic N/A linux-firmware1.95 RfKill:
[Bug 1136110] Re: USB Audio Codec choppy playback
Tested with Linux kernel v3.9-rc4, problem remains. ** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 AMD64. Ubuntu 13.04 AMD64, daily build as new as 20130314. 2) The version of the package used linux-image-3.5.0-26-generic linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/ linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/ This bug had been confirmed appearing after the following kernel upgrade step: v3.5.0-25 v3.5.0-26 ~ v3.5.0-27 v3.5.7.5 v3.5.7.6 ~ v3.5.7.8 v3.7.6 v3.7.7 ~ v3.7.10 v3.8.0-rc6 v3.8.0-rc7 ~ v3.8.4 The v3.9 branch has been affected since its very first release. - v3.9-rc1, v3.9-rc2, v3.9-rc3 are affected. + v3.9-rc1, v3.9-rc2, v3.9-rc3 v3.9-rc4 are all affected. 3) What you expected to happen When using a USB DAC to play audio, the audio should be played normally without any interruption. 4) What happened instead This bug seems to affect only a certain kind of hardware, which is called Asynchronous USB Digital Audio Codec (DAC). It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called Synchronous USB DAC, uses the clock hosted by the mother board, which is not affected by this bug. When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays. Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set. I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug. Affected Devices: Arce MDAC5 Arce MDAC mini Ayre Acoustics QB-9 Musical Fidelity v2 DAC USB Audio Streaming Controller on affected devices: Texas Instrument TAS1020 http://www.ti.com/product/tas1020 Audio DAC on affected devices: Texas Instruments PCM1742 http://www.ti.com/product/pcm1742 This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) 3.7.6 3.7.7 (and all 3.7.x above) 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) I used Kdiff to find the similar patches, and find the following patches suspicous: USB: XHCI: fix memory leak of URB-private data (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix for leaking isochronous data (appeared in 3.7.7/3.8.0-rc7) usb: Prevent dead ports when xhci is not enabled (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) usb: Using correct way to clear usb3.0 device's remote wakeup feature (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: remove ASS/PSS polling timeout (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: unlink one async QH at a time (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: fix timer bug affecting port resume (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix bug in scheduling periodic split transfers (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) Hope someone can look into this bug soon! --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: tysontan 2117 F pulseaudio /dev/snd/controlC1: tysontan 2117 F pulseaudio /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 RelatedPackageVersions: linux-restricted-modules-3.5.0-26-generic N/A linux-backports-modules-3.5.0-26-generic N/A linux-firmware1.95 RfKill: Tags: quantal package-from-proposed running-unity
[Bug 1136110] Re: USB Audio Codec choppy playback
Joseph Salisbury I had tested v3.9-rc3 on 2013-03-21, it didn't fix the problem. (#22 comment) v3.8.4, v 3.5.0.-27 did't fix the problem either. The bug description have been constantly updated with new information I discovered, too. Please have a look. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 AMD64. Ubuntu 13.04 AMD64, daily build as new as 20130314. 2) The version of the package used linux-image-3.5.0-26-generic linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/ linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/ This bug had been confirmed appearing after the following kernel upgrade step: - 3.5.0-25 3.5.0-26 - 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) - 3.7.6 3.7.7 (and all 3.7.x above) - 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) + v3.5.0-25 v3.5.0-26 ~ v3.5.0-27 + v3.5.7.5 v3.5.7.6 ~ v3.5.7.8 + v3.7.6 v3.7.7 ~ v3.7.10 + v3.8.0-rc6 v3.8.0-rc7 ~ v3.8.4 + The v3.9 branch has been affected since the very first release. + v3.9-rc1, v3.9-rc2, v3.9-rc3 are afeected. 3) What you expected to happen When using a USB DAC to play audio, the audio should be played normally without any interruption. 4) What happened instead This bug seems to affect only a certain kind of hardware, which is called Asynchronous USB Digital Audio Codec (DAC). It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called Synchronous USB DAC, uses the clock hosted by the mother board, which is not affected by this bug. When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays. Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set. I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug. Affected Devices: Arce MDAC5 Arce MDAC mini Ayre Acoustics QB-9 Musical Fidelity v2 DAC USB Audio Streaming Controller on affected devices: Texas Instrument TAS1020 http://www.ti.com/product/tas1020 Audio DAC on affected devices: Texas Instruments PCM1742 http://www.ti.com/product/pcm1742 This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) 3.7.6 3.7.7 (and all 3.7.x above) 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) I used Kdiff to find the similar patches, and find the following patches suspicous: USB: XHCI: fix memory leak of URB-private data (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix for leaking isochronous data (appeared in 3.7.7/3.8.0-rc7) usb: Prevent dead ports when xhci is not enabled (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) usb: Using correct way to clear usb3.0 device's remote wakeup feature (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: remove ASS/PSS polling timeout (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: unlink one async QH at a time (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: fix timer bug affecting port resume (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix bug in scheduling periodic split transfers (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) Hope someone can look into this bug soon! --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: tysontan 2117 F pulseaudio /dev/snd/controlC1: tysontan 2117 F pulseaudio /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 RelatedPackageVersions: linux-restricted-modules-3.5.0-26-generic N/A linux-backports-modules-3.5.0-26-generic N/A linux-firmware1.95 RfKill: Tags: quantal
[Bug 1136110] Re: USB Audio Codec choppy playback
Joseph Salisbury Yes, this bug didn't happen with v3.8.0-rc6 kernel, but it happened with every new kernel release after that version. So far the newest version is v3.9-rc3 and it is also affected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Tested on linux kernel 3.8.4, still not fixed. Jan (ya-me) From the change log of the recent Linux Kernel releases, It seems that the developers are busy tinkering with the kernel to add new features to the USB related modules. When those new features are fully implemented, hopefully they will look into all the regressions made in the progress. It's also possible that this regression be fixed by some other commits, without being noticed by the developer at all. Let's give the developers some more time. Meanwhile, we can still use an older kernel as a temporary workaround. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Added: Using CLI command grep device.buffering to get the buffer from the devices, those affected kernels are reporting back a different number to the unaffected devices. The choppy noise is very similar to the situation when buffer size is not correctly set. Added: Affected Devices: Arce MDAC5 Arce MDAC mini Ayre Acoustics QB-9 Musical Fidelity v2 DAC -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec choppy playback
Jan (ya-me) If you are affected by this issue, please help by selecting Yes, it affects me by clicking the yellow pencil icon right side of the green text This bug affects X people. Does this bug affect you?. It can be found somewhere below the title. This will increase the heat of the bug and hopefully more people can see it. ** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 AMD64. Ubuntu 13.04 AMD64, daily build as new as 20130314. 2) The version of the package used linux-image-3.5.0-26-generic linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/ linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/ This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) 3.7.6 3.7.7 (and all 3.7.x above) 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) 3) What you expected to happen When using a USB DAC to play audio, the audio should be played normally without any interruption. 4) What happened instead This bug seems to affect only a certain kind of hardware, which is called Asynchronous USB Digital Audio Codec (DAC). It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called Synchronous USB DAC, uses the clock hosted by the mother board, which is not affected by this bug. When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays. I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug. + + Affected Devices: + Arce MDAC5 + Arce MDAC mini + Ayre Acoustics QB-9 + Musical Fidelity v2 DAC USB Audio Streaming Controller on affected devices: Texas Instrument TAS1020 http://www.ti.com/product/tas1020 Audio DAC on affected devices: Texas Instruments PCM1742 http://www.ti.com/product/pcm1742 This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) 3.7.6 3.7.7 (and all 3.7.x above) 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) I used Kdiff to find the similar patches, and find the following patches suspicous: USB: XHCI: fix memory leak of URB-private data (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix for leaking isochronous data (appeared in 3.7.7/3.8.0-rc7) usb: Prevent dead ports when xhci is not enabled (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) usb: Using correct way to clear usb3.0 device's remote wakeup feature (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: remove ASS/PSS polling timeout (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: unlink one async QH at a time (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: fix timer bug affecting port resume (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix bug in scheduling periodic split transfers (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) Hope someone can look into this bug soon! --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: tysontan 2117 F pulseaudio /dev/snd/controlC1: tysontan 2117 F pulseaudio /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 RelatedPackageVersions: linux-restricted-modules-3.5.0-26-generic N/A linux-backports-modules-3.5.0-26-generic N/A linux-firmware1.95 RfKill: Tags: quantal package-from-proposed running-unity third-party-packages Uname: Linux 3.5.0-26-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom
[Bug 1136110] Re: USB Audio Codec choppy playback
Tested on linux kernel 3.9.0-rc3, still not fixed. ** Summary changed: - USB Audio Codec jerky playback (crackling noise) + USB Audio Codec choppy playback -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec jerky playback (crackling noise)
Tested on linux kernel 3.8.3, still not working. Tested on one more asynchronous USB DAC, and one other synchronous USB DAC, reproduced exactly the same issue in the description. ** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 AMD64. Ubuntu 13.04 AMD64, daily build as new as 20130314. 2) The version of the package used linux-image-3.5.0-26-generic linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/ linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/ This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 3.7.6 3.7.7 3.8.0-rc6 3.8.0-rc7 3) What you expected to happen When using a USB DAC to play audio, the audio should be played normally without any interruption. 4) What happened instead This bug seems to affect only a certain kind of hardware, which is called Asynchronous USB Digital Audio Codec (DAC). It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called Synchronous USB DAC, uses the clock hosted by the mother board, which is not affected by this bug. When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays. - I have two USB DACs, one Asynchronous and the other one Synchronous. - Only the Asynchronous one is affected by this bug. + I have tested three USB DACs, two Asynchronous and one Synchronous. Only + the Asynchronous ones are affected by this bug. This bug had been confirmed appearing after the following kernel upgrade step: - 3.5.0-25 3.5.0-26 + 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) 3.7.6 3.7.7 (and all 3.7.x above) 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) I used Kdiff to find the similar patches, and find the following patches suspicous: USB: XHCI: fix memory leak of URB-private data (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix for leaking isochronous data (appeared in 3.7.7/3.8.0-rc7) usb: Prevent dead ports when xhci is not enabled (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) usb: Using correct way to clear usb3.0 device's remote wakeup feature (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: remove ASS/PSS polling timeout (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: unlink one async QH at a time (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: fix timer bug affecting port resume (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix bug in scheduling periodic split transfers (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) Hope someone can look into this bug soon! --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: tysontan 2117 F pulseaudio /dev/snd/controlC1: tysontan 2117 F pulseaudio /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 RelatedPackageVersions: linux-restricted-modules-3.5.0-26-generic N/A linux-backports-modules-3.5.0-26-generic N/A linux-firmware1.95 RfKill: Tags: quantal package-from-proposed running-unity third-party-packages Uname: Linux 3.5.0-26-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 10/11/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET70WW (1.40 ) dmi.board.name: 0053A11 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias:
[Bug 1136110] Re: USB Audio Codec jerky playback (crackling noise)
USB Audio Streaming Controller on affected devices: Texas Instrument TAS1020 http://www.ti.com/product/tas1020 ** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 AMD64. Ubuntu 13.04 AMD64, daily build as new as 20130314. 2) The version of the package used linux-image-3.5.0-26-generic linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/ linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/ This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 - 3.5.7.5 3.5.7.6 - 3.7.6 3.7.7 - 3.8.0-rc6 3.8.0-rc7 + 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) + 3.7.6 3.7.7 (and all 3.7.x above) + 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) 3) What you expected to happen When using a USB DAC to play audio, the audio should be played normally without any interruption. 4) What happened instead This bug seems to affect only a certain kind of hardware, which is called Asynchronous USB Digital Audio Codec (DAC). It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called Synchronous USB DAC, uses the clock hosted by the mother board, which is not affected by this bug. When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays. I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug. + + USB Audio Streaming Controller on affected devices: + Texas Instrument TAS1020 + http://www.ti.com/product/tas1020 This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) 3.7.6 3.7.7 (and all 3.7.x above) 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) I used Kdiff to find the similar patches, and find the following patches suspicous: USB: XHCI: fix memory leak of URB-private data (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix for leaking isochronous data (appeared in 3.7.7/3.8.0-rc7) usb: Prevent dead ports when xhci is not enabled (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) usb: Using correct way to clear usb3.0 device's remote wakeup feature (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: remove ASS/PSS polling timeout (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: unlink one async QH at a time (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: fix timer bug affecting port resume (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix bug in scheduling periodic split transfers (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) Hope someone can look into this bug soon! --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: tysontan 2117 F pulseaudio /dev/snd/controlC1: tysontan 2117 F pulseaudio /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 RelatedPackageVersions: linux-restricted-modules-3.5.0-26-generic N/A linux-backports-modules-3.5.0-26-generic N/A linux-firmware1.95 RfKill: Tags: quantal package-from-proposed running-unity third-party-packages Uname: Linux 3.5.0-26-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 10/11/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET70WW (1.40 ) dmi.board.name: 0053A11 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias:
[Bug 1136110] Re: USB Audio Codec jerky playback (crackling noise)
Audio DAC on affected devices: Texas Instruments PCM1742 http://www.ti.com/product/pcm1742 ** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 AMD64. Ubuntu 13.04 AMD64, daily build as new as 20130314. 2) The version of the package used linux-image-3.5.0-26-generic linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/ linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/ This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) 3.7.6 3.7.7 (and all 3.7.x above) 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) 3) What you expected to happen When using a USB DAC to play audio, the audio should be played normally without any interruption. 4) What happened instead This bug seems to affect only a certain kind of hardware, which is called Asynchronous USB Digital Audio Codec (DAC). It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called Synchronous USB DAC, uses the clock hosted by the mother board, which is not affected by this bug. When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays. I have tested four USB DACs, two Asynchronous and two Synchronous. Only the Asynchronous ones are affected by this bug. USB Audio Streaming Controller on affected devices: Texas Instrument TAS1020 http://www.ti.com/product/tas1020 + + Audio DAC on affected devices: + Texas Instruments PCM1742 + http://www.ti.com/product/pcm1742 This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) 3.7.6 3.7.7 (and all 3.7.x above) 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) I used Kdiff to find the similar patches, and find the following patches suspicous: USB: XHCI: fix memory leak of URB-private data (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix for leaking isochronous data (appeared in 3.7.7/3.8.0-rc7) usb: Prevent dead ports when xhci is not enabled (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) usb: Using correct way to clear usb3.0 device's remote wakeup feature (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: remove ASS/PSS polling timeout (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: unlink one async QH at a time (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: fix timer bug affecting port resume (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix bug in scheduling periodic split transfers (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) Hope someone can look into this bug soon! --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: tysontan 2117 F pulseaudio /dev/snd/controlC1: tysontan 2117 F pulseaudio /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 RelatedPackageVersions: linux-restricted-modules-3.5.0-26-generic N/A linux-backports-modules-3.5.0-26-generic N/A linux-firmware1.95 RfKill: Tags: quantal package-from-proposed running-unity third-party-packages Uname: Linux 3.5.0-26-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 10/11/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET70WW (1.40 ) dmi.board.name: 0053A11 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not
[Bug 1136110] Re: USB Audio Codec jerky playback (crackling noise)
** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 AMD64. Ubuntu 13.04 AMD64, daily build as new as 20130314. 2) The version of the package used linux-image-3.5.0-26-generic linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/ linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/ This bug had been confirmed appearing after the following kernel upgrade step: 3.5.0-25 3.5.0-26 3.5.7.5 3.5.7.6 3.7.6 3.7.7 3.8.0-rc6 3.8.0-rc7 3) What you expected to happen When using a USB DAC to play audio, the audio should be played normally without any interruption. 4) What happened instead This bug seems to affect only a certain kind of hardware, which is called Asynchronous USB Digital Audio Codec (DAC). It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called Synchronous USB DAC, uses the clock hosted by the mother board, which is not affected by this bug. When this bug affects an asynchronous USB DAC, the audio played by the DAC is constantly interrupted. The playback itself does not stop, but the output becomes discontinous, filling with constant crackling noises, destroying everything the DAC plays. I have two USB DACs, one Asynchronous and the other one Synchronous. Only the Asynchronous one is affected by this bug. This bug had been confirmed appearing after the following kernel upgrade step: - 3.5.0-25 3.5.0-26 - 3.5.7.5 3.5.7.6 - 3.7.6 3.7.7 - 3.8.0-rc6 3.8.0-rc7 + 3.5.0-25 3.5.0-26 + 3.5.7.5 3.5.7.6 (and all 3.5.7.x above) + 3.7.6 3.7.7 (and all 3.7.x above) + 3.8.0-rc6 3.8.0-rc7 (and all 3.8.x above) I used Kdiff to find the similar patches, and find the following patches suspicous: USB: XHCI: fix memory leak of URB-private data (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix for leaking isochronous data (appeared in 3.7.7/3.8.0-rc7) usb: Prevent dead ports when xhci is not enabled (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) usb: Using correct way to clear usb3.0 device's remote wakeup feature (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: remove ASS/PSS polling timeout (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: unlink one async QH at a time (appeared in 3.7.7/3.8.0-rc7) USB: EHCI: fix timer bug affecting port resume (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) USB: EHCI: fix bug in scheduling periodic split transfers (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) Hope someone can look into this bug soon! --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: tysontan 2117 F pulseaudio /dev/snd/controlC1: tysontan 2117 F pulseaudio /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 RelatedPackageVersions: linux-restricted-modules-3.5.0-26-generic N/A linux-backports-modules-3.5.0-26-generic N/A linux-firmware1.95 RfKill: Tags: quantal package-from-proposed running-unity third-party-packages Uname: Linux 3.5.0-26-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 10/11/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET70WW (1.40 ) dmi.board.name: 0053A11 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 0053A11 dmi.product.version: ThinkPad X201 Tablet dmi.sys.vendor: LENOVO -- You received this bug
[Bug 1119885] Re: Quantal update to 3.5.7.5 stable release
ALSA: usb-audio: fix invalid length check for RME and other UAC 2 devices This commit might had caused some USB DAC to produce jerky audio output. All kernel versions after linux kernel 3.5.0-26 won't work with my asychronous USB DAC, my synchronous USB DAC works fine with the new version, though. They were all working fine with linux kernel under 3.5.0-25. I had downgraded to 3.5.0-25 and it worked again. I reproduced this issue under Ubuntu 12.10 and 13.04 daily build. Please look into this problem before it go into the release of Ubuntu 13.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1119885 Title: Quantal update to 3.5.7.5 stable release To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1119885/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 and later
** Summary changed: - Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 + Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 and later ** Description changed: 1) The release of Ubuntu using - Ubuntu 12.10 64-bit. + Ubuntu 12.10 AMD64. + Ubuntu 13.04 AMD64, daily build as of 20130314. 2) The version of the package used - linux-image-3.5.0-26-generic + linux-image-3.5.0-26-generic and later. 3) What you expected to happen - Audio being played smoothly without breaks and cracking sound. + When using a USB DAC to play audio, the audio should be played smoothly without breaks and cracking sound. 4) What happened instead After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed. One of my USB DAC works under Asynchronous Mode (USB device host clock), the other one works under Synchronous Mode (Motherboard host clock). The Synchronous one worked as usual after the updrade, while the - Asynchronous one did not. + Asynchronous failed to work after the upgrade. - I downgraded the package to the previous 3.5.0-26-generic, then everything went back to normal. - --- + I downgraded the package to the previous 3.5.0-25-generic, then + everything went back to normal. + + I suspect the patch: + ALSA: usb-audio: fix invalid length check for RME and other UAC 2 devices + https://patchwork.kernel.org/patch/2100111/ + had cause this issue. + + --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: - USERPID ACCESS COMMAND - /dev/snd/controlC0: tysontan 2117 F pulseaudio - /dev/snd/controlC1: tysontan 2117 F pulseaudio - /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio + USERPID ACCESS COMMAND + /dev/snd/controlC0: tysontan 2117 F pulseaudio + /dev/snd/controlC1: tysontan 2117 F pulseaudio + /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: - eth0 no wireless extensions. - - lono wireless extensions. + eth0 no wireless extensions. + + lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: - TERM=xterm - PATH=(custom, no user) - XDG_RUNTIME_DIR=set - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm + PATH=(custom, no user) + XDG_RUNTIME_DIR=set + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 RelatedPackageVersions: - linux-restricted-modules-3.5.0-26-generic N/A - linux-backports-modules-3.5.0-26-generic N/A - linux-firmware1.95 + linux-restricted-modules-3.5.0-26-generic N/A + linux-backports-modules-3.5.0-26-generic N/A + linux-firmware1.95 RfKill: - + Tags: quantal package-from-proposed running-unity third-party-packages Uname: Linux 3.5.0-26-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 10/11/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET70WW (1.40 ) dmi.board.name: 0053A11 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 0053A11 dmi.product.version: ThinkPad X201 Tablet dmi.sys.vendor: LENOVO -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 and later To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 and later
** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 AMD64. Ubuntu 13.04 AMD64, daily build as of 20130314. 2) The version of the package used linux-image-3.5.0-26-generic and later. 3) What you expected to happen When using a USB DAC to play audio, the audio should be played smoothly without breaks and cracking sound. 4) What happened instead After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed. One of my USB DAC works under Asynchronous Mode (USB device host clock), the other one works under Synchronous Mode (Motherboard host clock). The Synchronous one worked as usual after the updrade, while the Asynchronous failed to work after the upgrade. I downgraded the package to the previous 3.5.0-25-generic, then everything went back to normal. - I suspect the patch: - ALSA: usb-audio: fix invalid length check for RME and other UAC 2 devices - https://patchwork.kernel.org/patch/2100111/ - had cause this issue. + I have recheck the source of the issue, and find out: + This bug will appear after install kernel 3.5.7.6: + http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ + https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1131944 + + kernel 3.5.7.5 and older were all fine. + http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.5-quantal/ --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: tysontan 2117 F pulseaudio /dev/snd/controlC1: tysontan 2117 F pulseaudio /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 RelatedPackageVersions: linux-restricted-modules-3.5.0-26-generic N/A linux-backports-modules-3.5.0-26-generic N/A linux-firmware1.95 RfKill: Tags: quantal package-from-proposed running-unity third-party-packages Uname: Linux 3.5.0-26-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 10/11/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET70WW (1.40 ) dmi.board.name: 0053A11 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 0053A11 dmi.product.version: ThinkPad X201 Tablet dmi.sys.vendor: LENOVO -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 and later To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 and later
I've finished the test on all available kernels. kernel-bug-exists- upstream has been added to the tags, the bug description has also been updated according to my test result. Good luck on fixing the bug! ** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 AMD64. - Ubuntu 13.04 AMD64, daily build as of 20130314. + Ubuntu 13.04 AMD64, daily build as new as 20130314. 2) The version of the package used - linux-image-3.5.0-26-generic and later. + linux-image-3.5.0-26-generic + linux-image-3.5.7-03050706-generic_3.5.7-03050706.201302221435_amd64.deb + http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ + linux-image-3.7.7-030707-generic_3.7.7-030707.201302111436_amd64.deb + http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7.7-raring/ + linux-image-3.8.0-030800rc7-generic_3.8.0-030800rc7.201302081635_amd64.deb + http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc7-raring/ + + This bug had been confirmed appearing after the following kernel upgrade step: + 3.5.0-25 3.5.0-26 + 3.5.7.5 3.5.7.6 + 3.7.6 3.7.7 + 3.8.0-rc6 3.8.0-rc7 3) What you expected to happen - When using a USB DAC to play audio, the audio should be played smoothly without breaks and cracking sound. + When using a USB DAC to play audio, the audio should be played normally without any interruption. 4) What happened instead - After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed. + This bug seems to affect only a certain kind of hardware, which is called Asynchronous USB Digital Audio Codec (DAC). It's said that such a DAC hosts the clock itself (USB Device Host). An ordinary DAC, so called Synchronous USB DAC, uses the clock hosted by the mother board, which is not affected by this bug. - One of my USB DAC works under Asynchronous Mode (USB device host clock), - the other one works under Synchronous Mode (Motherboard host clock). The - Synchronous one worked as usual after the updrade, while the - Asynchronous failed to work after the upgrade. + When this bug affects an asynchronous USB DAC, the audio played by the + DAC is constantly interrupted. The playback itself does not stop, but + the output becomes discontinous, filling with constant crackling noises, + destroying everything the DAC plays. - I downgraded the package to the previous 3.5.0-25-generic, then - everything went back to normal. + I have two USB DACs, one Asynchronous and the other one Synchronous. + Only the Asynchronous one is affected by this bug. - I have recheck the source of the issue, and find out: - This bug will appear after install kernel 3.5.7.6: - http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.6-quantal/ - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1131944 + This bug had been confirmed appearing after the following kernel upgrade step: + 3.5.0-25 3.5.0-26 + 3.5.7.5 3.5.7.6 + 3.7.6 3.7.7 + 3.8.0-rc6 3.8.0-rc7 + I used Kdiff to find the similar patches, and find the following patches suspicous: + USB: XHCI: fix memory leak of URB-private data + (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) + USB: EHCI: fix for leaking isochronous data + (appeared in 3.7.7/3.8.0-rc7) + usb: Prevent dead ports when xhci is not enabled + (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) + usb: Using correct way to clear usb3.0 device's remote wakeup feature + (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) + USB: EHCI: remove ASS/PSS polling timeout + (appeared in 3.7.7/3.8.0-rc7) + USB: EHCI: unlink one async QH at a time + (appeared in 3.7.7/3.8.0-rc7) + USB: EHCI: fix timer bug affecting port resume + (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) + USB: EHCI: fix bug in scheduling periodic split transfers + (appeared in 3.5.7.6/3.7.7/3.8.0-rc7) - kernel 3.5.7.5 and older were all fine. - http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5.7.5-quantal/ + Hope someone can look into this bug soon! --- ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: tysontan 2117 F pulseaudio /dev/snd/controlC1: tysontan 2117 F pulseaudio /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb InstallationDate: Installed on 2013-02-15 (14 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: LENOVO 0053A11 MarkForUpload: True Package: linux 3.5.0.26.32 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom,
[Bug 1136110] Re: USB Audio Codec jerky playback (crackling noise)
** Tags added: raring ** Tags added: audio usb -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec jerky playback (crackling noise) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: USB Audio Codec jerky playback (crackling noise)
** Tags added: kernel-bug usb-audio -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec jerky playback (crackling noise) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26
I've singled out one modification that might be responsible for this issue: * ALSA: usb-audio: fix invalid length check for RME and other UAC 2 devices - LP: #1119885 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1119885] Re: Quantal update to 3.5.7.5 stable release
The fix might cause Asynchronous USB DAC to produce cracking sound in Linux kernel 3.5.0.26. #1136110 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1119885 Title: Quantal update to 3.5.7.5 stable release To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1119885/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26
apport information ** Tags added: apport-collected package-from-proposed running-unity third-party-packages ** Description changed: 1) The release of Ubuntu using Ubuntu 12.10 64-bit. 2) The version of the package used linux-image-3.5.0-26-generic 3) What you expected to happen Audio being played smoothly without breaks and cracking sound. 4) What happened instead After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed. One of my USB DAC works under Asynchronous Mode (USB device host clock), the other one works under Synchronous Mode (Motherboard host clock). The Synchronous one worked as usual after the updrade, while the Asynchronous one did not. - I downgraded the package to the previous 3.5.0-26-generic, then - everything went back to normal. + I downgraded the package to the previous 3.5.0-26-generic, then everything went back to normal. + --- + ApportVersion: 2.6.1-0ubuntu10 + Architecture: amd64 + AudioDevicesInUse: + USERPID ACCESS COMMAND + /dev/snd/controlC0: tysontan 2117 F pulseaudio + /dev/snd/controlC1: tysontan 2117 F pulseaudio + /dev/snd/pcmC1D0p: tysontan 2117 F...m pulseaudio + CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. + DistroRelease: Ubuntu 12.10 + HibernationDevice: RESUME=UUID=8545c3e2-caba-4eaa-8fa4-2fbebcc2d9bb + InstallationDate: Installed on 2013-02-15 (14 days ago) + InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) + IwConfig: + eth0 no wireless extensions. + + lono wireless extensions. + MachineType: LENOVO 0053A11 + MarkForUpload: True + Package: linux 3.5.0.26.32 + PackageArchitecture: amd64 + ProcEnviron: + TERM=xterm + PATH=(custom, no user) + XDG_RUNTIME_DIR=set + LANG=en_US.UTF-8 + SHELL=/bin/bash + ProcFB: 0 inteldrmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=UUID=8c60a142-505f-4d74-afa0-37686558e86e ro quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6 + RelatedPackageVersions: + linux-restricted-modules-3.5.0-26-generic N/A + linux-backports-modules-3.5.0-26-generic N/A + linux-firmware1.95 + RfKill: + + Tags: quantal package-from-proposed running-unity third-party-packages + Uname: Linux 3.5.0-26-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + dmi.bios.date: 10/11/2012 + dmi.bios.vendor: LENOVO + dmi.bios.version: 6QET70WW (1.40 ) + dmi.board.name: 0053A11 + dmi.board.vendor: LENOVO + dmi.board.version: Not Available + dmi.chassis.asset.tag: No Asset Information + dmi.chassis.type: 10 + dmi.chassis.vendor: LENOVO + dmi.chassis.version: Not Available + dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn0053A11:pvrThinkPadX201Tablet:rvnLENOVO:rn0053A11:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: + dmi.product.name: 0053A11 + dmi.product.version: ThinkPad X201 Tablet + dmi.sys.vendor: LENOVO ** Attachment added: AlsaInfo.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553684/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] BootDmesg.txt
apport information ** Attachment added: BootDmesg.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553685/+files/BootDmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] CurrentDmesg.txt
apport information ** Attachment added: CurrentDmesg.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553686/+files/CurrentDmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Dependencies.txt
apport information ** Attachment added: Dependencies.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553687/+files/Dependencies.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Lspci.txt
apport information ** Attachment added: Lspci.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553688/+files/Lspci.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Lsusb.txt
apport information ** Attachment added: Lsusb.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553689/+files/Lsusb.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] ProcCpuinfo.txt
apport information ** Attachment added: ProcCpuinfo.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553690/+files/ProcCpuinfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] ProcInterrupts.txt
apport information ** Attachment added: ProcInterrupts.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553691/+files/ProcInterrupts.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] ProcModules.txt
apport information ** Attachment added: ProcModules.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553692/+files/ProcModules.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] PulseList.txt
apport information ** Attachment added: PulseList.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553693/+files/PulseList.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] UdevDb.txt
apport information ** Attachment added: UdevDb.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553694/+files/UdevDb.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] UdevLog.txt
apport information ** Attachment added: UdevLog.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553695/+files/UdevLog.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] WifiSyslog.txt
apport information ** Attachment added: WifiSyslog.txt https://bugs.launchpad.net/bugs/1136110/+attachment/3553696/+files/WifiSyslog.txt ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] [NEW] Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26
Public bug reported: 1) The release of Ubuntu using Ubuntu 12.10 64-bit. 2) The version of the package used linux-image-3.5.0-26-generic 3) What you expected to happen Audio being played smoothly without breaks and cracking sound. 4) What happened instead After upgrading to Linux kernel 3.5.0-26-generic, one of my USB DAC (Digital Audio Codec) suddenly started to produce constently discontinous sound. Whenever there is audio being played by the system, the outcome would be always accompany with regular, stable, 5 to 6 times per second breaks. Both the system sound and songs from media player failed. One of my USB DAC works under Asynchronous Mode (USB device host clock), the other one works under Synchronous Mode (Motherboard host clock). The Synchronous one worked as usual after the updrade, while the Asynchronous one did not. I downgraded the package to the previous 3.5.0-26-generic, then everything went back to normal. ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: quantal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1136110] Re: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26
Hi, Joseph, thank you for the prompt reply. I've tried the newset kernel 3.8.1, but unfortunately it had the same issue too. The packages I installed were: linux-headers-3.8.1-030801_3.8.1-030801.201302280935_all.deb linux-headers-3.8.1-030801-generic_3.8.1-030801.201302280935_amd64.deb linux-image-3.8.1-030801-generic_3.8.1-030801.201302280935_amd64.deb linux-image-extra-3.8.1-030801-generic_3.8.1-030801.201302280935_amd64.deb -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: Asynchronous USB DAC cracking sound in Linux kernel 3.5.0.26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
