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For two days in a row (one would have been a one-off WTF that I don't
care to report) my system now hang after unlocking from the UI.
I can't see any obvious hanging processes that would be the obvious
reason.
OVer day I have a few screen locks e.g. when going for lunch, but at
least 2/2 times it only appeared when the lock was active over night.
I'm not sure it if it the duration or that some job kicks in at night.
I have used apport to collect the basics, and will add some more debug
data.
If you find a lead in there let me know, otherwise assuming I might face
this every morning please let me know what to check next time it happens
so that we can find the root cause.
I found similar bug 1285258 - but other than there I can NOT hit cancel
to get a second chance, nothing in the UI moves at all and all I can do
is drop to a non UI console with CTRL+ALT+F3 and debug from there.
I found that restarting gdm (systemctl restart gdm) gets me logged in,
therefore I'll also attach a journal log so that you can look for issues
in there.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gdm3 3.28.3-0ubuntu18.04.3
ProcVersionSignature: Ubuntu 4.18.0-13.14~18.04.1-generic 4.18.17
Uname: Linux 4.18.0-13-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
Date: Fri Jan 25 06:59:10 2019
InstallationDate: Installed on 2018-10-12 (104 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: gdm3
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: amd64 apport-bug bionic
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Hang at screen unlock (gdm / 18.04)
https://bugs.launchpad.net/bugs/1813248
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