Thank you for taking the time to report this bug and helping to make
Ubuntu better. It sounds like some part of the system has crashed. To
help us find the cause of the crash please follow these steps:
1. Look in /var/crash for crash files and if found run:
ubuntu-bug YOURFILE.crash
Then tell us the ID of the newly-created bug.
2. If step 1 failed then look at https://errors.ubuntu.com/user/ID where
ID is the content of file /var/lib/whoopsie/whoopsie-id on the machine.
Do you find any links to recent problems on that page? If so then please
send the links to us.
3. If step 2 also failed then apply the workaround from bug 994921,
reboot, reproduce the crash, and retry step 1.
Please take care to avoid attaching .crash files to bugs as we are
unable to process them as file attachments. It would also be a security
risk for yourself.
** Changed in: gnome-shell (Ubuntu)
Status: New => Incomplete
** Tags added: groovy
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Packages, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/1902918
Title:
GDM crashes after upgrade to 20.10 due to apparmor and snap
Status in gnome-shell package in Ubuntu:
Incomplete
Bug description:
Releases:
- Ubuntu 20.10 running Wayland
- apparmor 3.0.0-0ubuntu1
Error description:
After upgrading from Ubuntu 20.04 to 20.10 my GDM crashes regularly
even without user interaction when the computer is left unused. After
the crash the purple login screen shows and all open programs have
been terminated (and unsaved data is lost).
dmesg reveals that the issue is related to the "Ubuntu Software" Snap
application in conjunction with apparmor. Probably the issue occurs
when Ubuntu Software app is checking for updates in the background -
hence it occurs without user interaction.
Further information:
The issue has also been described by other users:
- https://askubuntu.com/questions/1230654/ubuntu-20-04-rebooting-and-freezing
-
https://www.dell.com/community/XPS/Ubuntu-20-04-XPS-13-crashes-and-logs-me-out/td-p/7623758
I attached the dmesg output
Best regards,
Daniel
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