Public bug reported:
The freeze causes the mouse cursor to stop moving and keyboard to stop
responding and nothing moves on screen, not even the clock. Curiously
the music continues to play (and e.g. sound from youtube video continues
to be played even though the video itself freezes and no longer animates
on-screen).
It appears that the freeze happens quite randomly; I am not able to
figure out what it's caused by. Sometimes it's caused by launching the
Snap Chromium, or perhaps by a notification shown, but I do not know for
sure. I also tried to hunt system logs and/or systemd gnome-shell logs,
but I failed to discover some kind of crash dump.
Curiously the Ctrl+Alt+F2 key combo stops working. That leads me to
believe that it's some kind of kernel+nouveau crash, but I can't seem to
discover any kernel panic in the system logs.
After the gnome-shell freezes, the numlock light still responds to
numlock key presses. However, mashing Ctrl+Alt+Del has no effect, so I'm
only able to reboot via Alt+Sysrq+s u b.
Thank you :)
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-shell 3.36.1-5ubuntu2
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue May 12 11:20:36 2020
DisplayManager: gdm3
InstallationDate: Installed on 2016-09-05 (1344 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
RelatedPackageVersions: mutter-common 3.36.1-3ubuntu3
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to focal on 2020-03-20 (52 days ago)
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal wayland-session
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https://bugs.launchpad.net/bugs/1878166
Title:
gnome-shell freezes randomly on nouveau and wayland
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