I've made the same tests with mainline kernel '5.12.4-051204-generic
#202105140931 SMP Fri May 14 09:35:44 UTC 2021 x86_64 x86_64 x86_64
GNU/Linux' and the results are the same, i.e. sensors command stopping
when reaching amd section and this error message showing in dmesg:
[ 65.636330] [drm]
Hi Sergio. First of all, thank you (and anyone else involved) for your
time investigating in the issue.
> Could you please try to run the command several times, specifying the
different chip
I did not find how to specify a certain chip with the 'sensors' command after
reading the man page.
But
apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491550/+files/UdevDb.txt
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Title:
apport information
** Attachment added: "acpidump.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491552/+files/acpidump.txt
** Changed in: linux-signed-hwe-5.8 (Ubuntu)
Status: Invalid => Confirmed
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491551/+files/WifiSyslog.txt
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apport information
** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491549/+files/RfKill.txt
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Title:
apport information
** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491548/+files/PulseList.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491547/+files/ProcModules.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491546/+files/ProcInterrupts.txt
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apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491545/+files/ProcEnviron.txt
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apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491544/+files/ProcCpuinfoMinimal.txt
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apport information
** Attachment added: "Lsusb-v.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491543/+files/Lsusb-v.txt
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Title:
apport information
** Tags added: apport-collected
** Description changed:
After updating via apt dist-upgrade from kernel 5.4.0-59 to kernel
5.8.0-34 the fan on my machine started switching on (for an instant) and
off every 10 seconds even when idle with CPU at 48/50°C.
Switching
apport information
** Attachment added: "Dependencies.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491537/+files/Dependencies.txt
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491539/+files/Lspci.txt
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Title:
apport information
** Attachment added: "Lsusb-t.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491542/+files/Lsusb-t.txt
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apport information
** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491541/+files/Lsusb.txt
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apport information
** Attachment added: "Lspci-vt.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491540/+files/Lspci-vt.txt
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apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491538/+files/IwConfig.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491536/+files/CurrentDmesg.txt
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apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491535/+files/CRDA.txt
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Title:
Fans
Please do not mark as expired. The problem is not resolved and I did all the
test requested.
If there is anything more I can do to help tracking down the problem please
feel free to ask.
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Hi Paride, where the test and logs above sufficient to validate the bug
? Can I do anything more to help looking into this issue ?
Regards, Gabriele.
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First of all, thanks for your time.
> One bug report can track a problem across several packages, so there's
no need for multiple reports.
Sorry for the noise :-)
> If you can reproduce it with Hirsute
I can reproduce the problem using linux-image-generic 5.10.0.14.16 from hirsute
in a tty.
Not sure about where to report, opened a bug on lm-sensors also:
https://bugs.launchpad.net/ubuntu/+source/lm-sensors/+bug/1914414
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https://bugs.launchpad.net/bugs/1914413
Title:
Public bug reported:
Previously reported here as a kernel bug (
https://bugs.launchpad.net/ubuntu/+source/linux-signed-
hwe-5.8/+bug/1910562 ), now after finding root cause reporting here
also.
After updating via apt dist-upgrade from kernel 5.4.0-59 to kernel
5.8.0-34 the fan on my machine
Not sure about where to report, opened a bug on amdgpu also:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
amdgpu/+bug/1914413
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Public bug reported:
Previously reported here as a kernel bug (
https://bugs.launchpad.net/ubuntu/+source/linux-signed-
hwe-5.8/+bug/1910562 ), now after finding root cause reporting here
also.
After updating via apt dist-upgrade from kernel 5.4.0-59 to kernel
5.8.0-34 the fan on my machine
So, after testing several different kernels and live distros to pinpoint
this bug, I finally found out the problem: it's an interaction between
lm-sensors and amdgpu driver with kernel > 5.4.0.
I found out by chance because I noticed the problem happened only after
logging in with a graphical
Just as a note, problem still persists in kernel 5.8.0-40.45
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Title:
Fans switching on and off every 10 seconds after update to kernel
Kernel 5.8 lsmod, lscpic, dmesg, sensors output
** Attachment added: "Kernel 5.8 lsmod, lscpic, dmesg, sensors output"
https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.8/+bug/1910562/+attachment/5450315/+files/kern_5.8.txt
** Description changed:
- After updating via apt
Public bug reported:
After updating via apt dist-upgrade from kernel 5.4.0-59 to kernel
5.8.0-34 the fan on my machine started switching on (for an instant) and
off every 10 seconds even when idle with CPU at 48/50°C.
Switching back to previous kernel solves temporary the problem, i.e.
fans are
Kernel 5.4 lsmod, lscpic, dmesg, sensors output
** Attachment added: "Kernel 5.4 lsmod, lscpic, dmesg, sensors output"
https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.8/+bug/1910562/+attachment/5450314/+files/kern_5.4.txt
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Just I quick follow up. The impact was so severe in my code because I
was using SDL_PollEvent() really often to read the keys status... which
was basically blocking my code.
That was one of the first things I wrote and forgot about it.
So that was really a context switching overhead problem.
Tyler, thanks a lot for taking the time to examine the issue and writing such a
complete response.
I agree with all your points.
I'll take this as an opportunity to try to learn more about profiling
and user/kernel space switching and optimization, because this made me
curious:
> Since the
Public bug reported:
After updating to the latest kernel 5.0.0-15 I'm experiencing a severe
performance degradation on my machine with one of my applications (a gbc
emulator developed by me).
I saw about a 27% performance loss, going from 55fps to 40.
Booting an old 5.0.0-13 kernel or disabling
Public bug reported:
Nautilus corrupts 7z archive files when extracting via 'Extract here' context
menu.
Extractions completes without errors, but the files are corrupted (mangled
bytes, wrong size).
This does happen only when extracting with 'Extract here' context menu action.
Using 7z or
** Attachment added: "Added lspci -v"
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1783977/+attachment/5168574/+files/lspci.txt
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Public bug reported:
Desktop completely freezes when inserting an sdcard with 2 partions
(fat32+ext4) into the internal reader.
The mouse pointer is active, but everything else is freezed (windows, clock,
etc).
I can switch to console with ctrl-alt-f3.
I can switch to login manager with
Public bug reported:
After updating from 16.10 to 17.04 the system hangs indefinitely when powering
off from Gnome.
After manually switching to console '7' with ctrl+alt+F7 the shutdown procedure
resumes and the system powers off correctly.
Reboot is not affected, i.e. the systems resets as
Thanks a lot Felix, I can confirm that the development version from PPA
fixes the issue.
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Title:
Missing language options and color schemes
To
Public bug reported:
After upgrade from version 0.12.0-1 to 0.12.0-2 (by upgrading Ubuntu
17.04 to 17.10) now there are no color schemes to choose under
Settings->Display->Color Scheme and only default language is available
under Setting->Language...
This is probably related to this bug:
@Tim, this is what works for me on a Dell Latitude E6540:
1. Left hand: Press and hold “Fn” key (between Ctrl and the Windows key)
2. Right hand: Press and hold “Alt” + “SysRq” keys (Stamp)
3. Left hand: Release “Fn” key
4. Left hand: Press and release “r” key. (Screenshot dialogs may start
Don't know if it can help, but enabling DRI3 solves the problem for me.
Just added this to /usr/share/X11/xorg.conf.d/20-intel.conf :
Section "Device"
Identifier "Card0"
Driver "Intel"
Option "DRI" "3"
EndSection
ad restarted X
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Same problem here: Dell Latitude E6540 with Intel HD4000 + AMD Radeon HD8790M
(OLAND), Ubuntu 16.04 updated.
Some OpenGL programs do not refresh the windows and shows only artifacts from
background when using DRI_PRIME=1 to lunch (e.g. with kicad pcbnew)
Followed comment #11 suggestion and
As you can see in the attached /etc/init.d/i8kmon script, there is no mention
of ENABLED variable sourced from /etc/default/i8kmon,
so the init script always runs if ENABLED is set to 0.
** Attachment added: "etc_init.d_i8kmon"
Public bug reported:
As title says, i8kmon is starting at boot even if not enabled in
/etd/default/i8kmon
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: i8kutils 1.41
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Bump
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Title:
System hangs completely when executing glxgears with DRI_PRIME=1
To manage notifications about this bug go to:
@IoannisVranos, thanks for the link, but I'm already on the latest firmware
version for this drive (DXT09B0Q).
Maybe this drive simply does not support getting NCQ Log Emask...
[1.439428] ata1.00: failed to get NCQ Send/Recv Log Emask 0x1
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If the problem is solved, change the tag 'verification-needed-trusty' to
'verification-done-trusty'.
If verification is not done by 5 working days from today, this fix will be
dropped from the source code, and this bug will be closed.
I really do not understand those sentences... what
I've updated to the latest kernel via Vivid Proposed (linux-image-
extra-3.19.0-22-generic 3.19.0-22.22) which per commit log should fix
the error, but I still see it:
$ dmesg | grep ata
[0.00] BIOS-e820: [mem 0xc8f9e000-0xc8ff] ACPI data
[0.00] ACPI: SSDT
Public bug reported:
I'm using a Dell Latitude E6540 laptop with hybrid graphics (Intel HD + Radeon
HD8790M).
Using DRI_PRIME=1 to offload to the discrete GPU causes different problems,
from simple program crash
to complete system hang (i.e. no ctrl-alt-F1, no external ssh access, only
Same problem here with Brother MFC-J4510DW.
After printing with A4 borderless duplex option and some resolution went
missing from the dialog.
Everything is ok when printing from qpdfview.
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Public bug reported:
When visiting site http://www.dell.it Firefox crashes (segmentation fault)
almost every time.
It happens even in safe mode with hardware acceleration disabled.
How to reproduce:
- go to http://www.dell.it (italian Dell website)
- click on 'Per il lavoro' (second link in
Attached full gdb trace obtained following instructions at:
https://wiki.ubuntu.com/MozillaTeam/Bugs#Run_Firefox_in_a_Debugger
Hope it helps. Please feel free to ask any information or test that can
be useful.
** Attachment added: gdb trace
Installing the latest package for Pangolin (3.1.4-1) in Oneiric from
Launchpad worked for me:
https://launchpad.net/ubuntu/+source/nautilus-actions
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I can confirm that removing .pulse directory does *not* solves the problem for
me :-(
But I found an empirical solution that is perfectly reproducible for me and
maybe can shed some light on the problem:
1. start playing an mp3 with VLC - sound is distorted/crackling
2. while VLC is playing,
After posting the above information to a corresponding bug in Skype, another
user posted back a solution that definitely solved the problem for me for both
VLC and Skype (and I suppose every other source in PC with intel-hda chipsets):
Thanks Ricardo. I've replaced jackd2 with jackd1 package.
Now jackd starts ok with command jackd -m -d alsa -p 256 -n 4 -P hw:0 -r -S
48000 but when I start fluidsynth I get this error on jackd log:
subgraph starting at fluidsynth timed out (subgraph_wait_fd=9, status =
0, state = Triggered,
I've downloaded an image of Lucid from here:
http://elinux.org/BeagleBoardUbuntu#Lucid_10.04.1
and running jackd with the options in the bug description (i.e. jackd -d
alsa -p 256 -n 4 -P hw:0 -S -r 48000) works well.
I've noticed that for enabling sound output in in Lucid you have to set
the
Attached some more debug info in one file (uname + package versions +
strace + ltrace)
** Attachment added: maverick_jackd_info.txt
https://bugs.launchpad.net/ubuntu/+source/jackd-defaults/+bug/643626/+attachment/1710779/+files/maverick_jackd_info.txt
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Jackd doesnt start on ARM Beagle
Same problem here with origina BeagleBoard rev C2.
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https://bugs.launchpad.net/bugs/643626
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A quick note just to say that the correct solution is the one posted by Sean
(#71), not mine (#70) which lasts only until reboot. Sean solution always works,
Thanks Sean.
I'm wondering if the problem could depend on the swap partition being too
small: on my system I have 2Gb of RAM and my swap
Deleting /usr/share/initramfs-tools/conf.d/compcache and rebuilding initramfs
solved the problem for me :-)
What I've done:
sudo swapoff /dev/ramzswap0
sudo rm /usr/share/initramfs-tools/conf.d/compcache
sudo update-initramfs -u
Pay attention that doing this disables compcache. I don't know if
Now the serial converter works well again, tested with:
- Ubuntu 9.10, Kernel 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 05:23:09 UTC
2010 i686 GNU/Linux
- Ubuntu10.4 RC, Kernel 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:10:02
UTC 2010 i686 GNU/Linux
Sorry for not posting back before, but
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