And apparently I solved the mystery. As a desperate attempt I changed the refresh rate of the from 59.xx Hz to 60 Hz, and Xorg stopped crashing coming out of suspend. I suggest giving it a try. Note: I do not know why the screen was initially set to 59.xx Hz.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1791981 Title: X Server session crash for "No space left on device" Status in Nvidia: New Status in xorg-server package in Ubuntu: Confirmed Bug description: Ubuntu Release: Ubuntu 18.04.1 LTS Package version: xserver-xorg: 1:7.7+19ubuntu7.1 When my laptop resumes after suspend, the desktop session crashes and a new one is started. So each time I lose all open applications and unsaved data! The expected behavior would be obviously to restore the suspended session. I had a look through log files and found that Xorg.0.log ends with the following error lines: [ 6004.019] (II) NVIDIA(0): Setting mode "NULL" [ 6004.026] (EE) modeset(G0): failed to set mode: No space left on device [ 6004.026] (EE) Fatal server error: [ 6004.026] (EE) EnterVT failed for gpu screen 0 [ 6004.027] (EE) [ 6004.027] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 6004.027] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. [ 6004.027] (EE) [ 6004.065] (EE) Server terminated with error (1). Closing log file. To manage notifications about this bug go to: https://bugs.launchpad.net/nvidia/+bug/1791981/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp