This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1870003
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1870003
Title:
A Machine with Intel GPU and a plugged AMD card will hang as read
certain codec as HDMI/DP monitor without audio output is plugged in
intel gpu.
Status in OEM Priority Project:
Confirmed
Status in linux package in Ubuntu:
Incomplete
Bug description:
Note: in bionic, it will cause login from graphic console to hang for
a quite long time, most likely will failed in the end.
To reproduce:
HW: a machine with intel GPU and plugged AMD card.
A HDMI/DP monitor without audio output plugged into intel GPU.
TLP is installed with certain aggressive config.
Please refer to the tlp config is: LP: #1869999
try to "cat /proc/asound/card0/codec#2"
it will hang for long time (like 30 seconds) and kernel will output
lots of log like:
[ 30.476204] snd_hda_intel 0000:00:0e.0: azx_get_response timeout, switching
to polling mode: last cmd=0x20bf8100
[ 31.488128] snd_hda_intel 0000:00:0e.0: No response from codec, disabling
MSI: last cmd=0x20bf8100
[ 169.630066] snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register
0x2f0d00. -11
[ 420.027224] snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register
0x2f0d00. -11
[ 422.051178] snd_hda_intel 0000:00:0e.0: azx_get_response timeout, switching
to single_cmd mode: last cmd=0x20170503
[ 422.051383] azx_single_wait_for_response: 3 callbacks suppressed
[ 422.084088] snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register
0x2f0d00. -5
...
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
DistributionChannelDescriptor:
# This is the distribution channel descriptor for the OEM CDs
# For more information see
http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-bionic-amd64-20180608-47+beaver-osp1-sanbernardino+X106
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2020-03-31 (1 days ago)
InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary
20180608-09:38
Package: linux-oem 4.15.0.1059.63
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 5.0.0-1040.45-oem-osp1 5.0.21
Tags: bionic
Uname: Linux 5.0.0-1040-oem-osp1 x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1870003/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
