https://bugs.kde.org/show_bug.cgi?id=509559
Bug ID: 509559
Summary: Applying settings for external monitor (mirrored) does
not work
Classification: Plasma
Product: KScreen
Version First 6.4.5
Reported In:
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
When connecting an external monitor (actually projector over HDMI) and set it
as mirror of the internal monitor, I cannot apply any settings to the external
monitor. The dialog asking to keep the settings does not appear.
The external monitor is set to a very low resolution and cannot be changed.
Setting the monitor mode to extension left/right allows changing the
resolution.
Some observations:
* Happens only under wayland, works in X11
* Did work in releases <= 6.3
* Interestingly, applying settings works when the monitor is rotated by 90°
* Checked with different kernel versions and HDMI adapters
* Checked with several different projectors, same behavior. I found one
external monitor where it works as expected.
* Checked with Neon Live System, same problem
STEPS TO REPRODUCE
1. attach external monitor
2. set to mirror
3. try to set the resolution in systemsettings -> does not work
OBSERVED RESULT
Applying a different resolution does not work. The dialog asking to keep the
setting does not appear.
EXPECTED RESULT
Sucessfully changing the resolution of a mirrored monitor
SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.17
Qt Version: 6.9.2
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