I'm rejecting two uploads for Noble because they collide between bug
2077746 and bug 2025006 (amongst others). Please coordinate and re-
upload just one SRU at once (possibly squashing multiple fixes together
as you wish).
** Changed in: mutter (Ubuntu Noble)
Status: In Progress => Triaged
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https://bugs.launchpad.net/bugs/2025006
Title:
Monitor colour profile is randomly not applied
Status in mutter package in Ubuntu:
Fix Committed
Status in mutter source package in Noble:
Triaged
Status in mutter source package in Oracular:
Fix Committed
Bug description:
[ Impact ]
Colour profiles fail to apply at random times in Wayland sessions.
Either when enabled in Settings>Color, or when logging into a new
session.
[ Workaround ]
Switch VTs away and back to your login, usually with Ctrl+Alt+F3,
Ctrl+Alt+F2. The correct colour profile is now more likely to be
applied.
[ Test Plan ]
1. Log into a Wayland session.
2. Open Settings > Color.
3. Select your primary monitor and 'Add profile'.
4. Add a whole-screen profile that will visibly change the screen like 'D50'.
5. Verify the new profile does not have the ⓘ icon next to it.
6. Repeatedly swap between enabling the new file, and enabling the old
automatic profile.
7. Verify the screen colour temperature changes EVERY TIME that the ✓ check
mark moves.
[ Where problems could occur ]
KMS property management in Wayland sessions has been redesigned for
this fix, which includes colour management, night light, and hardware
privacy screens. So there is a risk of unexpected behaviour in any of
those features.
Since KMS properties are applied atomically on most machines, this
could also affect screen refresh performance.
[ Other Info ]
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2025006/+subscriptions
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