Public bug reported:
It was noticed that, when using a heavy application, as a game, after
some time GPU hangs will start to happen. They happen constantly and, if
nothing is done, they never stop. The system is recoverable as the user
can access a TTY and kill the offending application (after waiting a few
minutes to start the TTY).
After that, graphical demanding applications either run slower (it's not
just the product of the lower frequency, it's different) or start
causing the GPU hangs again. Restarting the applications that didn't
cause GPU hangs will make them work normally again.
This started to happen after the security fixes to Intel GPUs. Power
management is also disabled. It was noticed drm-tip does not have this
bug.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-12-generic 5.4.0-12.15
ProcVersionSignature: Ubuntu 5.4.0-12.15-generic 5.4.8
Uname: Linux 5.4.0-12-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu16
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat Feb 1 22:06:22 2020
InstallationDate: Installed on 2017-06-13 (963 days ago)
InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
SourcePackage: linux-signed-5.4
UpgradeStatus: Upgraded to focal on 2019-12-22 (41 days ago)
mtime.conffile..etc.apport.crashdb.conf: 2019-08-29T08:39:36.787240
** Affects: linux-signed-5.4 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1861590
Title:
Intel GPU hangs constantly under load. After closing offending
application, all GPU intensive programs run degraded
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