I am getting very similar results.
For work a desktop computer was wiped and then imaged with Ubuntu 22.04.
Like francois-lafont, I have noticed that when the system 'screen blank'
activates, all my open windows in my session are closed after logging
back in.
About my system (from About menu in Settings)
- Dell OptiPlex 3050
- 32 GB RAM
- Intel® Core™ i7-7700 CPU @ 3.60GHz × 8
- AMD® Radeon rx 550 / 550 series / Mesa Intel® HD Graphics 630 (KBL GT2)
- GNOME Version: 42.2
Monitors being used:
- Dell U2211Ht 22"
- Acer G226HQL 22"
- LG 32MA68HY 27"
Again, like francois-lafont's testing, I have reproduced this error by
setting the 'Screen Blank' setting to 1 minute, then waiting for the
system to enter the screen blank state. The following then happens.
1. Everything seems to be fading out as normal
2. Screens no longer have data that needs to be displayed, they go into sleep
mode
3. After a brief period, screens are forced back on (where when this problem
isn't happening, screens will remain in sleep mode until input provided by user)
4. System displays the dark login screen as if I was never logged in.
5. After signing in, all my open applications have been closed.
I have managed to circumvent this issue by choosing the option
'Ubuntu on xorg' before signing in, or by uncommenting the line
#WaylandEnable=false
in /etc/gdm3/custom.conf. I then repeat the test described above after
rebooting gdm3 and my session is saved, no issues.
I have attached my own results that I found after a 'journalctl -b0'.
The text in the file are some of the lines before and after the line:
gnome-shell[xxxx]: segfault at ....
** Attachment added: "journalctl_results.txt"
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1987209/+attachment/5610891/+files/journalctl_results.txt
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You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/1987209
Title:
gnome-shell (Wayland) crashes with SIGSEGV when screen locker
activates (jj), immediately after
meta_workspace_get_work_area_for_monitor: assertion 'logical_monitor
!= NULL' failed
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