Thanks for the bug report.
Firstly please check for crashes by following these steps:
https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment
In a Wayland session it is only crashes of 'gnome-shell' that are relevant here.
Secondly, next time the problem happens please:
1. Wait 10 seconds.
2. Reboot.
3. Run: journalctl -b-1 > prevboot.txt
4. Attach the resulting text file here.
Thanks for the bug report.
Firstly please check for crashes by following these steps:
https:/ /wiki.ubuntu. com/Bugs/ Responses# Missing_ a_crash_ report_ or_having_ a_.crash_ attachment
In a Wayland session it is only crashes of 'gnome-shell' that are relevant here.
Secondly, next time the problem happens please:
1. Wait 10 seconds.
2. Reboot.
3. Run: journalctl -b-1 > prevboot.txt
4. Attach the resulting text file here.