Bug 517040 - Long-Pressing a brightness widget on the desktop dims all screens to minimal brightness and changes colorscheme
Summary: Long-Pressing a brightness widget on the desktop dims all screens to minimal ...
Status: RESOLVED FIXED
Alias: None
Product: plasmashell
Classification: Plasma
Component: Brightness and Color widget (other bugs)
Version First Reported In: 6.6.80
Platform: Other Linux
: NOR normal
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords: regression
: 516076 (view as bug list)
Depends on:
Blocks:
 
Reported: 2026-03-03 16:05 UTC by Tobias Fella
Modified: 2026-03-06 16:38 UTC (History)
5 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In: 6.6.3
Sentry Crash Report:


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Description Tobias Fella 2026-03-03 16:05:19 UTC
SUMMARY
Long-Pressing a brightness widget on the desktop dims all screens to minimal brightness and changes colorscheme

STEPS TO REPRODUCE
1. Add brightness widget to desktop
2. long-press it with the left mouse button to go into edit mode

OBSERVED RESULT
All sliders go to 0; screens go dark; color scheme changes

EXPECTED RESULT
Nothing changes

SOFTWARE/OS VERSIONS
KDE Plasma Version: git master
KDE Frameworks Version: git master
Qt Version: git master
Comment 1 TraceyC 2026-03-03 20:45:39 UTC
I'm not able to reproduce this with
KDE Plasma Version: git master (6.6.80)
KDE Frameworks Version: 6.24.0
Qt Version: 6.10.2
Comment 2 Tobias Fella 2026-03-04 13:16:11 UTC
Seems to be a regression from 1560be8ab509c2a3a30c8381d382d8f9eeee5eb9
Comment 3 Nate Graham 2026-03-04 20:30:10 UTC
I can reproduce it too on git master.

https://invent.kde.org/plasma/plasma-workspace/-/commit/1560be8ab509c2a3a30c8381d382d8f9eeee5eb9
Comment 4 Bug Janitor Service 2026-03-05 12:12:02 UTC
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/6379
Comment 5 Marco Martin 2026-03-05 12:45:04 UTC
Git commit 2c0fd34541abe0ec54a4a953a74208f0ea99c79d by Marco Martin.
Committed on 05/03/2026 at 12:45.
Pushed by mart into branch 'master'.

Revert "ContainmentLayoutManager: send recursive mouse release events too"

This reverts commit 1560be8ab509c2a3a30c8381d382d8f9eeee5eb9.

This was a workaround on the wrong place which caused other problems,
such as having children buttons actually being triggered when the
syntethic release was sent.
The proper fix is in Folderview to properly release mouse grab
when it gets disabled
Related: bug 509859, bug 416909

### Test plan

On desktop long press on the brightness applet, it shouldn't change brightenn and color scheme anymore

M  +0    -1    components/containmentlayoutmanager/itemcontainer.cpp

https://invent.kde.org/plasma/plasma-workspace/-/commit/2c0fd34541abe0ec54a4a953a74208f0ea99c79d
Comment 6 Marco Martin 2026-03-05 12:46:27 UTC
Git commit 54692fbf6f2b7ad2764dcc4261e05072c6e1f480 by Marco Martin.
Committed on 05/03/2026 at 12:46.
Pushed by mart into branch 'Plasma/6.6'.

Revert "ContainmentLayoutManager: send recursive mouse release events too"

This reverts commit 1560be8ab509c2a3a30c8381d382d8f9eeee5eb9.

This was a workaround on the wrong place which caused other problems,
such as having children buttons actually being triggered when the
syntethic release was sent.
The proper fix is in Folderview to properly release mouse grab
when it gets disabled
Related: bug 509859, bug 416909

### Test plan

On desktop long press on the brightness applet, it shouldn't change brightenn and color scheme anymore

M  +0    -1    components/containmentlayoutmanager/itemcontainer.cpp

https://invent.kde.org/plasma/plasma-workspace/-/commit/54692fbf6f2b7ad2764dcc4261e05072c6e1f480
Comment 7 cwo 2026-03-06 15:04:28 UTC
*** Bug 516076 has been marked as a duplicate of this bug. ***