Resynchronizing with bug 2025006, which we assume fixed it.
** Changed in: mutter (Ubuntu Noble)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2066902
Title:
Night Light occasionally gets stuck
Status in Mutter:
New
Status in mutter package in Ubuntu:
Fix Released
Status in mutter source package in Noble:
Fix Released
Status in mutter source package in Oracular:
Fix Released
Bug description:
[ Impact ]
Since installing Ubuntu 24.04, every now and then Night Light gets
stuck when my screen is locked at night and I unlock it in the
morning. The screen is then very orange (more so than normally is the
case with Night Light), and disabling it with the button in in the top
bar menu does nothing.
The only ways to restore the screen to normal are disabling and
enabling the colour profile or running `gdbus call -e -o
/org/gnome/SettingsDaemon/Color -d org.gnome.SettingsDaemon.Color -m
org.gnome.SettingsDaemon.Color.NightLightPreview 1`
[ Test Plan ]
Unknown. Requires OP verification.
[ Where problems could occur ]
Night light and colour profiles are one in the same feature so
touching one always risks affecting the other. Since all such gamma
changes get committed along with other screen updates, there is the
risk (particularly with atomic mode setting) that a mistake in any one
change will cause the entire screen update to fail, resulting in black
frames.
[ Other Info ]
I have never been able to find anything remotely relevant in any
system logs regarding this issue. It also does not happen every day,
but probably once every seven to ten days or so.
My PC has an AMD RX550 GPU using the amdgpu driver. I'm not sure if it
makes a difference, but so far I've not seen this problem on my other
machines with Intel IGPs.
The upstream bug report can be found here:
https://gitlab.gnome.org/GNOME/mutter/-/issues/3439
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