Public bug reported:
[Summary]
The system screen turns on for a moment after entering suspend.
This issue happens on Dell Latitude 5421.
[Steps to reproduce]
1. Enter suspend via power menu
2. Observe the display
(Note that `rtcwake` may not able to reproduce this issue. `systemctl
suspend` may reproduce this.)
[Expected result]
The screen should not turn back on if the system is going to suspend.
[Actual result]
When "Suspend" is clicked, screen turns off, then turns back on for a moment,
then turns off before laptop entering suspend.
** Affects: nvidia-graphics-drivers-470 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1952823
Title:
Screen blinks when entering suspend
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