Public bug reported:
Trying to run Ubuntu 20.04 on some Dell workstations with Nvidia Quadro
P2200 cards. Getting some odd crashes. If a single monitor is plugged
and the workstation is power on you can then log in and plug a second
monitor in and locking the screen DOES not crash X/Wayland/nouveau. If
you boot the system with both monitors plugged in then logging in and
locking the computer will cause X/Wayland/Nouveau to crash and only a
reboot will fix it. You can still ssh into the box though. The monitors
are connected via DisplayPort.
There were no kernel backtraces in the journal when running this bug
report. But in other cases there has been nouveau backtraces.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.8.0-59-generic 5.8.0-59.66~20.04.1
ProcVersionSignature: Ubuntu 5.8.0-59.66~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-59-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Jun 25 16:02:35 2021
InstallationDate: Installed on 2021-06-25 (0 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64
(20210209.1)
SourcePackage: linux-signed-hwe-5.8
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-signed-hwe-5.8 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1933609
Title:
Locking screen crashes X/Wayland with nouveau when multiple monitors
are plugged in
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