Fixed in GNOME 42:
https://gitlab.gnome.org/GNOME/mutter/-/issues/1991#note_1427109
** Changed in: mutter (Ubuntu)
Status: Confirmed => Fix Released
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** Tags removed: hirsute
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https://bugs.launchpad.net/bugs/1929650
Title:
Screen doesn't turn off when using Wayland on some devices
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Gerry, please follow the instructions in bug 1949262 instead.
** No longer affects: gnome-settings-daemon (Ubuntu)
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Title:
Screen doesn't turn
In my case, adding MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0 to /etc/environment
worked. After reboot, the screen turns off and stays off. I will do
further testing if this has some side effects.
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I added :
MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0
in /etc/environment and rebooted.
It didn't fix the problem...
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https://bugs.launchpad.net/bugs/1929650
Title:
Screen doesn't turn off when
I noticed in the source code recently that power saving modes are
implemented differently in atomic KMS, which only got switched on
recently. Maybe try turning that off in /etc/environment to see if the
problem is specific to atomic KMS:
MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0
and then reboot.
**
** Summary changed:
- Screen doesn't turn off when using Wayland on a Thinkpad E480
+ Screen doesn't turn off when using Wayland on some devices
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