[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 1136110] Re: USB Audio Codec choppy playback
Can someone explain how, if at all, these fixes flow through to other Linux versions like Fedora? -- 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
Just a short update: Since my old computer brock down (more then 8 years old laptop), I have now a Thinkpad T450p. Running Kubuntu 14.10, as before my DAC is an Audiolab 8200CD. And this issue does not occur anymore, neither on the USB 2 nor USB 3 plug. So might have been really an hardware issue somehow for me before. Cheers! -- 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
To keep this brief - I'm an idiot. It's all my own fault. Sorry for wasting people's time reading my scribbles. Now the longer version. I did some extensive tests, playing local music via VLC - OK. Remote server music via VLC and foobar (under wine) - Not OK. Internet music (Firefox, BBC radio streams) - Not OK. Ethernet vs Wi-Fi - no difference. I then looked at my notes for any modifications I might have made in the past, and there it was. I had changed the default pulse-audio bit rate in /etc/pulse/daemon.conf to suit another application using a different output device. My memory being what it is (age...) I had totally forgotten. Reverting to standard fixed the problem. I don't really understand why local music under VLC was OK and other's not, but no matter. The problem has gone away. Now I shall go away and hide -- 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 am on 14.04, 64 bit, a new Samsung laptop bought earlier this year. Connecting via USB 2 or USB 3 to my Musical Fidelity M1 CLiC Async USB DAC gives the crackles and interruptions as described above (analogue or digital). When connected it is described as a PCM2706 Audio Codec Digital Stereo (IEC958). I have tried the Analogue and Digital configurations. Quite often Pulseaudio just stops and restarts. Connecting via USB 2 or USB 3 to my Meridian Explorer Async USB DAC works fine. On my old (2003) Sony Laptop, recently retired, it worked fine. An extract from my syslog follows. I had just disconnected from the USB 3 port and connected to my USB 2 port. This is, whatever the log may say, not a USB 3 device or port. WIll there really be no fix? It seems pretty fundamental for many Async USB DACs. Dec 6 13:31:55 twpsamlinux kernel: [ 418.785848] HDMI ATI/AMD: no speaker allocation for ELD Dec 6 13:33:20 twpsamlinux kernel: [ 503.543057] usb 5-1: USB disconnect, device number 2 Dec 6 13:33:29 twpsamlinux kernel: [ 512.148960] usb 3-1: new full-speed USB device number 2 using ohci-pci Dec 6 13:33:29 twpsamlinux kernel: [ 512.316151] usb 3-1: New USB device found, idVendor=08bb, idProduct=2706 Dec 6 13:33:29 twpsamlinux kernel: [ 512.316173] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Dec 6 13:33:29 twpsamlinux kernel: [ 512.316185] usb 3-1: Product: USB Audio DAC Dec 6 13:33:29 twpsamlinux kernel: [ 512.316195] usb 3-1: Manufacturer: Burr-Brown from TI Dec 6 13:33:29 twpsamlinux kernel: [ 512.370306] input: Burr-Brown from TI USB Audio DACas /devices/pci:00/:00:12.0/usb3/3-1/3-1:1.2/input/input12 Dec 6 13:33:29 twpsamlinux kernel: [ 512.370910] hid-generic 0003:08BB:2706.0002: input,hidraw0: USB HID v1.00 Device [Burr-Brown from TI USB Audio DAC ] on usb-:00:12.0-1/input2 Dec 6 13:35:01 twpsamlinux kernel: [ 604.390700] HDMI ATI/AMD: no speaker allocation for ELD Dec 6 13:35:01 twpsamlinux kernel: [ 604.687996] HDMI ATI/AMD: no speaker allocation for ELD Dec 6 13:35:01 twpsamlinux kernel: [ 604.987999] HDMI ATI/AMD: no speaker allocation for ELD Dec 6 13:35:02 twpsamlinux kernel: [ 605.288020] HDMI ATI/AMD: no speaker allocation for ELD Dec 6 13:35:02 twpsamlinux kernel: [ 605.588042] HDMI ATI/AMD: no speaker allocation for ELD -- 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
Furthermore, I resurrected my old Sony laptop just to try and test this, with xubuntu 14.04, and it works OK. Being of 2003 vintage it's only just USB 2, let alone 3. So it seems to me that there may be a problem with the USB 3 support misidentifying a USB 2 device in some fashion. Can I force something in the udev rules somewhere? -- 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 Passingham, as I understood from Alan Stern in earlier posts, most modern computers emulate USB2 through USB3 root hub, so basically USB3 XHCI driver is used for all connected devices, and async usb audio support in XHCI driver is somewhat flawed. I also had similar problem a year a so ago, but it disappeared since then (now on Ubuntu 14.10 Arcam R-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
Tim: This has nothing to do with USB-3. You can tell from the log: Dec 6 13:33:29 twpsamlinux kernel: [ 512.148960] usb 3-1: new full- speed USB device number 2 using ohci-pci OHCI is strictly USB-1.1. However, you have not provided nearly enough useful information to tell what's going wrong. You didn't even say what version of the kernel you are using! -- let alone provide a usbmon trace like some of the other people contributing to this bug report. -- 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 assumed that since others had supplied so much detail I didn't need to supply any more. I was simply saying that this problem affects me as well (as I think was requested by an earlier post), and noting that on an older USB-2 only system I get no problems at all (and didn't have on previous versions of xubuntu). I thought that might be useful extra information. I don't know enough about linux to know what to include, or how. I am just a user, not any form of expert. So I don't know what OHCI is, but when is says .../0/usb3/3-1... I assume that's what it means. More fool me. Both laptops are on 14.04 xubuntu, fully up to date. If it really will help, I will try to read and understand all 200 items here and submit further data, but I didn't imagine I'd have anything new to contribute. -- 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
Andrejas: You say I also had similar problem a year a so ago, but it disappeared since then (now on Ubuntu 14.10 Arcam R-DAC). Are you saying that the same DAC didn't work under 14.04 but does under 14.10? Has the problem therefore definitely been analysed and fixed in 14.10? -- 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
Re: [Bug 1136110] Re: USB Audio Codec choppy playback
On Sat, 6 Dec 2014, Tim Passingham wrote: I assumed that since others had supplied so much detail I didn't need to supply any more. I was simply saying that this problem affects me as well (as I think was requested by an earlier post), What makes you think this is the same problem? It probably isn't, since the problem that originally provoked this bug report has been fixed. And so have some of the other problems raised later on in this same bug report. and noting that on an older USB-2 only system I get no problems at all (and didn't have on previous versions of xubuntu). I thought that might be useful extra information. I doubt that the age of the system is directly related. I don't know enough about linux to know what to include, or how. I am just a user, not any form of expert. So I don't know what OHCI is, but when is says .../0/usb3/3-1... I assume that's what it means. More fool me. Both laptops are on 14.04 xubuntu, fully up to date. If it really will help, I will try to read and understand all 200 items here and submit further data, but I didn't imagine I'd have anything new to contribute. What is the output from uname -r? Also, see comment #172. -- 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 also am having terrible USB audio. Trying to just chill listening to the blues, and hear every minute, a pop or hiccup. If I switch to the onboard sound (even if SPDIF output), perfectly fine. My monitor's built in speakers are USB, and I'm about to just connect regular speakers to the built in sound output. I've been having this problem for several years. (Since I bought this computer in 2008 to be exact). -- 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 should note that running either Mac OS X or Windows, results in perfect audio. It's only ever been Linux with the problem. Though to be honest, after 6 years of unresolved USB audio, I've grown to just accept that this will never be fixed. -- 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
Re: [Bug 1136110] Re: USB Audio Codec choppy playback
this bug persists for me, now on 3.11, just tried a live system again (have tried every new Ubuntu, Mint and Debian distro since bug appeared) does it help to submit data 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
I can't tell what's happening with daphile. Maybe it's simply a matter of how much network activity or disk activity or graphics activity is going on at the time. (Of course, storing a usbmon trace creates some disk activity of its own...) You can check whether graphics is the issue by switching to a VT console while the audio is playing. There is no way to reconfigure the PCI bus. -- 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
Not sure if uploading my attachment worked right, got a confirmation, but can't find it in my comment. Used the add attachment below the comment field. If it is lost somewhere, I could upload it 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
Ok, finally got the time. Attached is the output stream with some audible cracks, like explained above. Hope I did it right... Not sure if the output of cat /sys/kernel/debug/usb/devices is of any interest, but here it is: T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0 D: Ver= 2.00 Cls=00(ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0451 ProdID=8200 Rev= 1.60 S: Manufacturer=Lakewest Audio S: Product=Audiolab 8200 Series C:* #Ifs= 3 Cfg#= 1 Atr=c0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms I:* If#= 1 Alt= 0 #EPs= 1 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio E: Ad=83(I) Atr=03(Int.) MxPS= 2 Ivl=32ms I:* If#= 2 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I: If#= 2 Alt= 1 #EPs= 2 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=01(O) Atr=05(Isoc) MxPS= 582 Ivl=1ms E: Ad=81(I) Atr=11(Isoc) MxPS= 3 Ivl=1ms ** Attachment added: output https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/4124889/+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
The usbmon trace contains a bunch of -63 error codes. 28 of them occurred during the 13-second trace. This code is documented to mean During an OUT transfer, the Host Controller could not retrieve data system memory fast enough to keep up with the USB data rate. In other words, the PCI bus in your old laptop was overloaded. -- 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
Thanks for looking into it! But I wonder, if this should be an issue of my hardware, why I can use the same laptop with the same DAC without problems with daphile (http://www.daphile.com/ , a headless Gentoo-based player)? Shouldn't daphile have the same problems? Or is there a way to configure the PCI bus to get it working? -- 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
Please read comment #172. -- 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
Hi! Finally I also upgraded to Kubuntu 14.04, and have also still the crackles. Since it is a very old Laptop, there are only USB 2.0 connectors, so for sure no USB-3.0 problem... And: running on the same laptop daphile (which is a headless player based on Gentoo) works fine, without any problems. Wondering why it's fine with that one, but not Kubuntu... So, let's see if I can help anything... Here's my lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 003: ID 0451:8200 Texas Instruments, Inc. Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub So, the 5th is the DAC, a Audiolab 8200CD. (no other USB devices connected) dmesg gives a lot of outputs, so only ones that differ while playback are: [19545.228188] 3:2:1: cannot get freq at ep 0x1 [19545.231204] 3:2:1: cannot get freq at ep 0x1 [19549.621200] delay: estimated 265, actual 44 (all other lines are similar to: [19550.940214] status interrupt: 80 02) Since I am also more a user then a linux pro: what prompts might be useful to narrow the problem down? -- 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 recently heard that USB audio works okay over USB-3 using xHCI controllers from NEC rather than Intel; see http://marc.info/?l=linux-usbm=139958150312402w=2 If you run lspci, it will show the manufacturers for the xHCI controllers in your system. -- 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
This is the output from LSPCI. There is a mention of NEC USB 3 controller, however I have tried all the USB2 and USB3 ports on the machine previously without success. markrich@markys-home-pc:~$ lspci 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09) 00:02.0 Display controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09) 00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4) 00:1c.4 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 5 (rev c4) 00:1c.6 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 7 (rev c4) 00:1c.7 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 8 (rev c4) 00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Z77 Express Chipset LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 7 Series/C210 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GK104 [GeForce GTX 660 Ti] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GK104 HDMI Audio Controller (rev a1) 03:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller 04:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller 05:00.0 PCI bridge: PLX Technology, Inc. PEX 8608 8-lane, 8-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba) 06:01.0 PCI bridge: PLX Technology, Inc. PEX 8608 8-lane, 8-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba) 06:04.0 PCI bridge: PLX Technology, Inc. PEX 8608 8-lane, 8-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba) 06:05.0 PCI bridge: PLX Technology, Inc. PEX 8608 8-lane, 8-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba) 06:06.0 PCI bridge: PLX Technology, Inc. PEX 8608 8-lane, 8-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba) 06:07.0 PCI bridge: PLX Technology, Inc. PEX 8608 8-lane, 8-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba) 06:08.0 PCI bridge: PLX Technology, Inc. PEX 8608 8-lane, 8-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba) 06:09.0 PCI bridge: PLX Technology, Inc. PEX 8608 8-lane, 8-Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba) 09:00.0 SATA controller: ASMedia Technology Inc. ASM1062 Serial ATA Controller (rev 01) 0a:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9128 PCIe SATA 6 Gb/s RAID controller with HyperDuo (rev 11) 0b:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) 0c:00.0 Network controller: Broadcom Corporation BCM43228 802.11a/b/g/n 0d:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 09) -- 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
You can find the correspondence between the PCI device list and the USB bus list by running grep . /sys/bus/usb/devices/usb*/serial In addition to the NEC controller, your listing includes two EHCI (i.e., USB-2) controllers; they are the ones with Enhanced in the description. Any of those controllers ought to work okay for your 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 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
This is the result of the output from dmesg. [10633.605645] usb 9-2: USB disconnect, device number 2 [10639.410777] usb 9-2: new full-speed USB device number 3 using xhci_hcd [10640.279483] usb 9-2: New USB device found, idVendor=0c56, idProduct=0003 [10640.279488] usb 9-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [10640.279491] usb 9-2: Product: ARCAM Wireless Audio [10640.279493] usb 9-2: Manufacturer: ARCAM [10640.308472] 3:1:1: cannot get freq at ep 0x1 [10640.360464] 3:1:1: cannot get freq at ep 0x1 [10640.366589] 3:1:1: cannot get freq at ep 0x1 [10640.392456] 3:1:1: cannot get freq at ep 0x1 [10640.399559] 3:1:1: cannot get freq at ep 0x1 [10640.428447] 3:1:1: cannot get freq at ep 0x1 [10640.434574] 3:1:1: cannot get freq at ep 0x1 The USB sound device is plugged into the newly purchased USB2 PCIe card. -- 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 asked the retailer to take back the card I have purchased. It is of no use to me if Linux is reporting it as USB3 and not USB2. -- 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
Just what I was going to suggest. Maybe you can find a true USB-2 card somewhere else. You can try building a kernel with the attached (untested) patch. It is a partial fix for a bug in the xHCI driver, and it might solve your problem on the USB-3 ports. ** Patch added: Partial fix for xhci-hcd isochronous start-frame bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/4103424/+files/xhci-isoc-start.patch -- 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 do not know how to apply the patch mentioned without guidance and instructions. -- 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
There probably is a document somewhere on the Ubuntu web site explaining how to do this. (I don't know where, and I don't use Ubuntu.) Or maybe Joseph Salisbury can do it for you. -- 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 attached a new report according to wishes from the device playing audio through a separate PCI USB PCIe device. The file is 2.mon.out. The rice crispies sound is still present through this device too. ** Attachment added: 2.mon.out https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/4102609/+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
What about the dmesg output for when you plugged in the audio device? The information in the usbmon trace suggests that the device was plugged into a USB-3 port, not into the USB-2 PCI card. -- 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
This is the result of the output from dmesg. [10633.605645] usb 9-2: USB disconnect, device number 2 [10639.410777] usb 9-2: new full-speed USB device number 3 using xhci_hcd [10640.279483] usb 9-2: New USB device found, idVendor=0c56, idProduct=0003 [10640.279488] usb 9-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [10640.279491] usb 9-2: Product: ARCAM Wireless Audio [10640.279493] usb 9-2: Manufacturer: ARCAM [10640.308472] 3:1:1: cannot get freq at ep 0x1 [10640.360464] 3:1:1: cannot get freq at ep 0x1 [10640.366589] 3:1:1: cannot get freq at ep 0x1 [10640.392456] 3:1:1: cannot get freq at ep 0x1 [10640.399559] 3:1:1: cannot get freq at ep 0x1 [10640.428447] 3:1:1: cannot get freq at ep 0x1 [10640.434574] 3:1:1: cannot get freq at ep 0x1 The USB sound device is plugged into the newly purchased USB2 PCIe card. -- 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 hate to say this, but the xhci_hcd in the second line means that the port is USB-3, not USB-2. -- 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
The device is now plugged into a USB port on the motherboard. I will do a USBMON trace for you later. I will need to buy another PCI USB card from eBay or other to provide another set of USB ports, however I'm using only half of those I presently have so will be overflowing with them.. :-/ -- 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
Does anyone read this anymore or am I yelling at the wind? -- 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
Re: [Bug 1136110] Re: USB Audio Codec choppy playback
I am here. Hearing you. On 21/04/14 11:46, Mark Rich wrote: Does anyone read this anymore or am I yelling at the wind? -- 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
The homePC/Server I built isn't a year old yet. I cannot justify replacing motherboard, RAM and CPU just for a single problem. I am using a 3770K on an ASUS P8Z-77v-Deluxe motherboard. Nothing about my rig is cheap sadly. :-( -- 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
Mark, I've just had the same problem on Gentoo with a new (and rather expensive) DAC. With the 3.13 and 3.14 kernels it sounds like a bowl of Rice Krispies - snap, crackle and pop. BUT! After reading this bug report I tried the latest 3.4 kernel (3.4.87) and that works perfectly. It would be nice to track down the proper fix, but at least we can listen to some nice music in the meantime. -- 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
Mark, I've just had the same problem on Gentoo with a new (and rather expensive) DAC. With the 3.13 and 3.14 kernels it sounds like a bowl of Rice Krispies - snap, crackle and pop. BUT! After reading this bug report I tried the latest 3.4 kernel (3.4.87) and that works perfectly. It would be nice to track down the proper fix, but at least we can listen to some nice music in the meantime. - I have just added a QED Bluetooth receiver to my sound system to allow me to stream my music without the rice krispies effect. It's not a solution, but a fudge and work around until someone can help fix it. It doesn't sound as good and it chops off the top end frequencies but it's something. :-( I tried a fresh installation of 14.04, in case of any legacy issues, files and configs from the 13.10 installation, but alas the same problems remained. I did consider using openSUSE or another flavour of Linux too. I guess with your test of Gentoo, I can put it to one side. -- 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
Mark, Phil, and others: This problem is not going to get solved any time soon. It requires a substantial rewrite of a large portion of the ehci-hcd driver,, which would itself take many months, and I have other things to work on. In theory you can get around the problem by buying an add-on PCI USB card and plugging the audio device into that card instead of into the motherboard's USB ports. Of course, this isn't practical for laptops and it has other obvious disadvantages. If anybody feels like doing the work to fix up ehci-hcd, I'll be happy to provide advice and oversee their efforts. -- 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
Your suggestion does not work for me. I have a USB PCI card installed to my computer alongside my motherboard USB ports. I have already tried the Arcam device on its ports with the same results when trying to isolate the cause previously. -- 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
You know, if would help a lot if you provided some concrete data instead of just saying it doesn't work. For example, what shows up in the dmesg log when you plug the audio device into the PCI card? If you collect a usbmon trace showing a noise-filled session, what do you get (see comments #72-#53 and also comment #82). -- 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
Apologies for being vague. I do not know how to get the information you need to help identify the problem. The comment numbers you suggested do not help me. I am still uncertain of my way around the lower levels of Linux. Please tell me how to get the information you need. -- 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
Do this: After plugging the audio device into the PCI card, run the dmesg command and attach the output to this bug report. Did you read comment #72 in this bug report? Follow the intructions in the URL mentioned in that comment. -- 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 no idea if I have done what you desire correctly - given it's my first attempt to do so, however I hope the following will be helpful. markrich@markys-home-pc:~$ lsusb Bus 002 Device 005: ID 18d1:4ee1 Google Inc. Nexus 4 Bus 002 Device 004: ID 046d:0825 Logitech, Inc. Webcam C270 Bus 002 Device 003: ID 07b5:0317 Mega World International, Ltd Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 009 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 010 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 006: ID 046d:c52b Logitech, Inc. Unifying Receiver Bus 001 Device 007: ID 046d:c52b Logitech, Inc. Unifying Receiver Bus 001 Device 003: ID 0b05:17b5 ASUSTek Computer, Inc. Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 004: ID 0c56:0003 Billion Bright, Ltd THIS IS THE ARCAM USB DAC DEVICE Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub markrich@markys-home-pc:~$ Linux markys-home-pc 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Result of DMESG upon inserting the device to the computer. [12577.154663] usb 3-4: USB disconnect, device number 3 [12581.537084] usb 3-4: new full-speed USB device number 4 using xhci_hcd [12582.385769] usb 3-4: New USB device found, idVendor=0c56, idProduct=0003 [12582.385774] usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [12582.385777] usb 3-4: Product: ARCAM Wireless Audio [12582.385779] usb 3-4: Manufacturer: ARCAM [12582.395414] 4:1:1: cannot get freq at ep 0x1 [12582.417913] 4:1:1: cannot get freq at ep 0x1 [12582.420866] 4:1:1: cannot get freq at ep 0x1 [12582.437893] 4:1:1: cannot get freq at ep 0x1 [12582.440824] 4:1:1: cannot get freq at ep 0x1 [12582.448387] 4:1:1: cannot get freq at ep 0x1 [12582.451144] 4:1:1: cannot get freq at ep 0x1 These last repeating lines seem to crop up a lot on reports of this problem as I have been searching around Google for answers. T: Bus=03 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=00(ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0c56 ProdID=0003 Rev= 1.10 S: Manufacturer=ARCAM S: Product=ARCAM Wireless Audio C:* #Ifs= 2 Cfg#= 1 Atr=00 MxPwr= 20mA I:* If#= 0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio I:* If#= 1 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I: If#= 1 Alt= 1 #EPs= 2 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=01(O) Atr=05(Isoc) MxPS= 585 Ivl=1ms E: Ad=81(I) Atr=01(Isoc) MxPS= 3 Ivl=1ms This information comes from, cat /sys/kernel/debug/usb/devices I played a sound file and outputted the results (I think) to the attached file for you to see according to the instructions. ** Attachment added: 1mon.tar.gz https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/4091571/+files/1mon.tar.gz -- 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
Was this dmesg taken after you plugged the device into the add-on PCI card? It shows that the device is connected to a USB-3 port. That's the reason for your problems; the support in Linux for isochronous transfers over USB-3 is buggy. Try plugging the device into a USB-2 port instead. -- 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 will do so, however the problem is the same for both USB2 and USB3 ports. I have tried them all in the past on the three controllers (ASMEDIA, NEC and Intel). -- 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
[ 3379.830961] usb 3-4: USB disconnect, device number 2 [ 3394.173420] usb 2-1.5: new full-speed USB device number 6 using ehci-pci [ 3394.973170] usb 2-1.5: New USB device found, idVendor=0c56, idProduct=0003 [ 3394.973176] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 3394.973178] usb 2-1.5: Product: ARCAM Wireless Audio [ 3394.973181] usb 2-1.5: Manufacturer: ARCAM [ 3394.982917] 6:1:1: cannot get freq at ep 0x1 [ 3395.005298] 6:1:1: cannot get freq at ep 0x1 [ 3395.008167] 6:1:1: cannot get freq at ep 0x1 [ 3395.518273] 6:1:1: cannot get freq at ep 0x1 [ 3395.521167] 6:1:1: cannot get freq at ep 0x1 [ 3396.020796] 6:1:1: cannot get freq at ep 0x1 [ 3396.023791] 6:1:1: cannot get freq at ep 0x1 -- 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
Have you tried an add-on PCI USB-2 card? (The lsusb output suggests you don't.) That's the combination most likely to work. If you can do that, attach the corresponding usbmon trace. If you don't have any USB-2 ports on the PCI card, attach a usbmon trace using a USB-2 port on the motherboard. -- 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
So I patiently waited for weeks until the release of 14.04 with its 3.13 kernel and the problem remains. Did the patch not get integrated into the final release? If not, why and how can I do it myself - in easy steps please! I still cannot use my DAC without the crackles and pops. :-( -- 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
Has anyone tested with the upcoming 14.04 release to see if the problem is still there? I still have an expensive unused DAC waiting for a fix. -- 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 the arcam mwave device mentioned above. I am using 13.10 with kernel 3.11.0-17-generic as part of the normal update procedure but the problem is still present. I am uncertain how to apply the fix mentioned above (still very green when it comes to kernel rebuilds). How can I resolve? -- 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
@mark: since i have the same problem (see #158) and am also unexperienced with kernel installations, I just wait now until the kernel 3.13 is in the package updates, I hope at latest with 14.04, so in 2 months... or is there anywhere a simple manual how to do this update? which kernel will be in 14.04? or will be an kernel-update before? -- 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 an laptop Acer and an Asus Xonar U7 with asynchronus USB Audio CM6632A. I'v tried this patches, but clicks was still here, with different kernel version. I'v started unloading kernel modules and after unloading acer-wmi clicks disapear. Also nvidia's GPU powermizer frequency shift makes klicks sometimes. Setting constant GPU frequency fix this. After blacklisting acer-wmi and setting constatn GPU freq. clicks completly disapear, even during kernel compill with 100% cpu load. -- 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, I have an asynchronous DAC (HRT microStreamer) and I had the problem described in this bug with current kernel releases when setting the output to 88.2 or 96 KHz (just as a side note, it only happened with ehci ports, it worked correctly with xhci ports) I've just tried 3.13rc6 which includes your commit to improve the buffering and it works perfectly!! No more crackling even at 96/24. So it's fixed for me, thanks a lot for your time and your effort!! :) -- 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
Think I have similar problems using my Audiolab 8200 CD with the latest Kubuntu (Kernel 3.11.0-14). Described my problem here: http://ubuntuforums.org/showthread.php?t=2190729 , but got no useful help, and found now this bug report. Please let me know if I can do something what would help the debugging, beside the informations in the link... ** Changed in: linux (Ubuntu) Assignee: (unassigned) = a! (a-guenther) -- 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
** Changed in: linux (Ubuntu) Assignee: a! (a-guenther) = (unassigned) -- 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
Re: [Bug 1136110] Re: USB Audio Codec choppy playback
Still present for me in 3.11.0-12-generic. On 17/11/13 14:32, Andrejs Hanins wrote: Alan, finally I've found time and compiled mainline kernel from 15 of November (which includes the merge from tiwai branch) and I'm pleased to say that sound choppiness of my setup with Arcam rDAC has gone! Can't reproduce it whatsoever. Sound it flawless. So thanks a lot for your efforts, and I'll wait for official 3.13 release while sitting on custom compiled kernel. Not the first time I'm doing it, hehe :) -- 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, finally I've found time and compiled mainline kernel from 15 of November (which includes the merge from tiwai branch) and I'm pleased to say that sound choppiness of my setup with Arcam rDAC has gone! Can't reproduce it whatsoever. Sound it flawless. So thanks a lot for your efforts, and I'll wait for official 3.13 release while sitting on custom compiled kernel. Not the first time I'm doing it, hehe :) -- 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
Andrejs: If you read comments #118 and #121, you would understand why the kernel's revert is different from the patch attached to comment #118. There is another commit currently queued for the 3.13 kernel release: https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit?id=976b6c064a957445eb0573b270f2d0282630e9b9 You might find that it helps your system. If it doesn't, please follow the debugging procedure described in comments #82, 90, 105, and 111. -- 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
Re: [Bug 1136110] Re: USB Audio Codec choppy playback
On Sat, 9 Nov 2013, Andrejs Hanins wrote: Hi all, sorry for bothering, but I'm upgraded to latest Ubuntu 13.10 and the bug is still there, despite the fact fix was available few months ago. Is it expected situation? Maybe you are seeing a different 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
@Alan At least, the distorted sound I hear is very similar to the original description and the patch provided here does help me. I'm very confused, because even the 3.9.6 kernel from ppa, which contains the fix does not help me. What I'll do is to compile several versions of kernel with and without a patch to have an absolutely clear experiment and report 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
@Alan To my surprise, the patch committed to the official Linux repo (https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdc03438f53a00294ed9939eb3a1f6db6f3d8963) is very different from the patch attached to this bug report (https://launchpadlibrarian.net/140553725/ehci-split-bugs). Why is it so? I guess, this a the reason why my USB async DAC still does not work with the officially fixed kernel and works with this local patch. I'm looking forward to resolve this situation and provide any additional debug info if needed. And I don't use USB Hub. Also the my locally compiled patched 3.9.4 Kernel has been working flawlessly with my Arcam USB Dac (r-dac)for half a year without any single issue. -- 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 thought I should chip in to confirm that I still get occasional issues with my USB DAC, even on the current Saucy 3.11.0-12 kernel. The symptoms are identical to those that were occurring prior to the patch, however now they usually resolve by unplugging and replugging the DAC, whereas prior to the patch they never resolved. I'm thinking there's still something not-quite-right in the kernel handling of these async audio devices. (Or possibly, these async audio devices don't always obey the USB spec perfectly in some way?) -- 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
Hi all, sorry for bothering, but I'm upgraded to latest Ubuntu 13.10 and the bug is still there, despite the fact fix was available few months ago. Is it expected situation? Thanks. -- 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
Re: [Bug 1136110] Re: USB Audio Codec choppy playback
13.04 is ok for me. On 09/11/2013 10:05 pm, Andrejs Hanins ahan...@gmail.com wrote: Hi all, sorry for bothering, but I'm upgraded to latest Ubuntu 13.10 and the bug is still there, despite the fact fix was available few months ago. Is it expected situation? Thanks. -- You received this bug notification because you are subscribed to the bug report. 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 -- 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
@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
So, I'm using Ubuntu 13.04 64 bit and I have this: wellywu@System76:/etc/pulse$ uname -r 3.8.0-27-generic When is this going to be fixed? I have a HRT MicroStreamer asynchronous USB DAC and headphone amplifier. I downloaded and installed Clementine Development from the PPA and I set ALSA sink to hw:1,0 output and I get crackling sounds when playing 88.2 and 96 kHz high resolution FLAC files. -- 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
** Changed in: linux (Ubuntu) Status: Fix Committed = Fix Released -- 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
Toby: I'm sure whatever problem is caused by the hub is NOT identical to the original problem. It may have similar symptoms, but the underlying cause must be different. For example, it might be a bug in the hub itself. Tyson: In theory, connecting a USB device through a hub should not affect any latency, DPC or other. Furthermore, in many cases there is no choice -- the design of the motherboard forces all non-high-speed devices to be routed to an on-board hub. On the other hand, it is true that Linux's support for periodic transfers to low/full-speed USB devices is more robust in the UHCI and OHCI drivers than in the EHCI driver. This means that if your motherboard has a UHCI or OHCI controller, your DAC (or mouse!) is likely to work more reliably if plugged directly into the motherboard than if connected through a USB-2 hub. Using an old USB-1.1 hub should be about as good as going directly to the motherboard. -- 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
Hi Alan, Tyson, I agree, my comment about this issue being a regression is definitely incorrect, and it's some kind of other issue. However it is interesting that the symptoms I received really were identical to those presented by the original bug. It sounds like there's a bug somewhere else that ends up trashing the async transfers. Ah well, for now I just know to disconnect the hub if it happens again. Cheers, Toby -- 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
Aargh! Curses! Mainline kernel 3.10.1 (from the PPA) has introduced this exact 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
Edit: Although I don't know how.. I just looked at the difference between 3.10.0 and 3.10.1 and there didn't seem to be anything in there for usb audio. The mainline PPA doesn't add patches, does it? https://lkml.org/lkml/2013/7/13/115 -- 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 to spam you all again, but just an update to the above comments. Rolling back to 3.10.0 didn't fix the problem after all. What did was unplugging and replugging the USB Hub I had the USB Audio device plugged into. (Unplugging and replugging the audio device from the hub didn't help. Just unplugging the hub itself from the desktop.) No idea how that could be causing an identical problem as the kernel issue was. It does seem like there's still some buggy handling of something in there somewhere. -- 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
The fix for this bug will be released in the 3.8.13.3 kernel. ** Changed in: linux (Ubuntu) Status: Confirmed = Fix Committed -- 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, yes this fix will make it into the 3.8 kernel through the normal stable update process. -- 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 the Audioengine D1 and the only thing that fixes it is plugging it into this http://www.amazon.com/AmazonBasics-USB-4-Port-Ultra- Mini/dp/B003M0NURK/ref=sr_1_1?ie=UTF8qid=1371414908sr=8-1keywords=amazon+usb+hub Which forces the D1 to use ehci instead of uhci. -- 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
Just thought I'd comment that the kernel 3.9.6 from the Mainline PPA seems to have resolved the problem for me on 13.04. It's quite a relief! -- 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
Will it ever get into mainline ubuntu 3.8? -- 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 all - looking forward to playing music again with the new kernel. If anyone could specify how to use (apply) the patch: fix some mistakes in ehci-hcd's split transaction scheduler: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3685174/+files /ehci-split-bugs ... before compiling, then that would be really cool, as I have not been successful in doing so. -- 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
Alan, thanks for all the help with this issue! -- 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
Thanks to Tyson and Tim for all their testing. -- 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 (stern) wrote on 2013-05-24: Unless there are any objections, I'll submit the reversion next week. Any update/news? -- 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 with this kernel, the problem still exists for me: http://kernel.ubuntu.com/~jsalisbury/lp1136110/commit-reverted/ -- 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
At least, I've been using the patch (i.e. listening USB audio) on top of 3.9.4 Kernel daily with my Arcam r-DAC on almost 2 weeks and seen no more choppiness or any new problems. -- 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
@ Andrejs Hanins: Could you please specify *which* patch that is (incl. further instructions)? thanks! -- 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
@ mp The patch attached to this bug report named fix some mistakes in ehci-hcd's split transaction scheduler. I just took vanilla (www.kernel.org) 3.9.4 Kernel, applied patch and compiled it for 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/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
@ Andrejs Hanins: Thanks for that clarification. For others looking for the same information, this is the patch: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3685174/+files /ehci-split-bugs Relatedly: Any with-patch-compiled kernels available for download anywhere, by any chance? -- 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 submitted a reversion for commit 3e619d04159be54b3daa0b7036b0ce9e067f4b5d. It will appear probably in the 3.10-rc6 kernel and then in the next 3.9.stable kernel released 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/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
Any ETA's on when the mainline Ubuntu 3.8 kernel will be patched/commit reverted? -- 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
** Tags removed: performing-bisect -- 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
Hi, just FYI, I faced the same bug on Ubuntu AMD64 13.04 and async USB Arcam rDAC. I tried the attached patch on top of vanilla 3.9.4 Kernel (last stable as for today) and it definitely did help also for me. No more choppiness whatsoever. Before the patch, choppiness happened in every 2-nd or so attempt to play through ALSA directly (pulse-audio is definitely unrelated). -- 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
Ok, that patch fixes the problem. I changed nothing else (so Logitech USB keyboard still attached). attached: periodic.txt ** Attachment added: periodic.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3685425/+files/periodic.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: 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
and now attached devices (as devices.txt) in case it helps. ** Attachment added: devices.txt https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3685426/+files/devices.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: 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
Thanks for testing. It's good to know that the patch works as intended and that it fixes the problem. It indicates that my understanding of what's going on with the hardware is basically right. Nevertheless, I think the safest course will be to revert the commit. This part of the driver is in such bad shape that fixing one bug is likely to cause another one to surface (which in fact is exactly what happened to cause your problem in the first place). Unless there are any objections, I'll submit the reversion next week. -- 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
Just out of curiosity, does it make any difference if you remove the Logitech receiver? (Not that I think this would be any sort of fix. A real code update is needed. I just wondered if it would change anything.) -- 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'm not sure if this is worth it... Reverting that commit would be a lot more straightforward, and that's probably what I'll end up doing. However, this patch makes the driver more correct -- although it's still a long way from being right. But the only way to fix this properly is to rewrite a large chunk of the code, and that's just not feasible for a simple regression fix. In the meantime, I'd like to know what happens when you apply this patch to the non-working kernel. Does the sound come out right? And either way, what does the periodic file say? ** Attachment added: fix some mistakes in ehci-hcd's split transaction scheduler https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3685174/+files/ehci-split-bugs -- 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
