You have been subscribed to a public bug:
Automatic suspension causes the system to freeze on resume. This doesn't
happen if I suspend it manually by opening the system menu and pressing
the suspend button. Suspension works flawlessly when it is triggered
manually.
When the system resumes from automatic suspension, the lock screen is
visible but does not respond. It's frozen. A notification says something
like "system will suspend shortly due to inactivity". It never goes
away.
The keyboard responds during this (at least for a while). The CAPS LOCK
LED turns on and off as I press it (with no delay). Sometimes I can even
switch to another TTY and kill the X server, which is why I'm reporting
it against gnome-shell. When switching TTY is impossible, I use the
"REISUB" combination to shut down. Either way, I always lose the running
session.
This is reproducible about 60% of the time. Eventually I ended up
disabling it and relying only on manual suspension.
# Additional information:
1) Ubuntu 20.04.2 LTS / Release: 20.04
2) gnome-shell 3.36.4-1ubuntu1~20.04.2
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-shell 3.36.4-1ubuntu1~20.04.2
ProcVersionSignature: Ubuntu 5.8.0-44.50~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-44-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Mar 3 16:56:01 2021
DisplayManager: gdm3
InstallationDate: Installed on 2021-01-31 (31 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
RelatedPackageVersions: mutter-common 3.36.7+git20201123-0.20.04.1
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: amd64 apport-bug focal
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[amdgpu] kernel crash when resuming from automatic suspension to RAM
https://bugs.launchpad.net/bugs/1917674
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