Ubuntu
linux package

  1. Bug #1950393
  2. Comment #9

Comment 9 for bug 1950393

Revision history for this message
Vladislav K. Valtchev (vvaltchev) wrote : Re: GDM session crashes on suspend on Ubuntu 21.10

Hi Daniel,
In my understanding, the crash is not reproducible after my workaround (switching to the nvidia driver), because the nvidia-resume.service is not masked (my theory).

Therefore, I switched back to the Nouveau driver, and I reproduced the problem and collected the system logs as you asked. Now prevboot.txt contains the logs from a clean boot, through the session crash and ends with a (user requested) reboot.

Just for the record, these are the steps to reproduce the bug:

 1. Install Ubuntu 21.10 on a laptop(?) with an nvidia GPU
 2. Open "Software & Updates" -> "Additional Drivers"
 3. Select the latest driver (470)
 4. Reboot
 5. Login normally on GDM
 6. Open "Software & Updates" -> "Additional Drivers"
 7. Select "Nouveau display driver" and apply the changes
 8. Reboot
 9. Login normally on GDM
10. Try to suspend the system
11. You should observe a session crash here