This log message might be related:
May 29 23:01:32 havard-X1-G12 gnome-shell[2394]: Cursor update failed:
drmModeAtomicCommit: Invalid argument
If you repeat the bug a few times, does that message or something
similar occur on wakeup? (journalctl -b0)
** Summary changed:
- ‘no signal’ after monitor sleep or monitor turned off
+ [i915] ‘no signal’ after monitor sleep or monitor turned off
** Changed in: linux (Ubuntu)
Status: Incomplete => New
** Changed in: mutter (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/2067143
Title:
[i915] ‘no signal’ after monitor sleep or monitor turned off
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