https://bugs.kde.org/show_bug.cgi?id=506254
Bug ID: 506254
Summary: Native panel resolution refused on (external) screen
Classification: Plasma
Product: KScreen
Version First 6.4.1
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 182717
--> https://bugs.kde.org/attachment.cgi?id=182717&action=edit
Output from kscreen-doctor
SUMMARY
On a laptop with two 2560x1600 external screens, the resolution of one of the
screens is refused applied, 1920x1200 works.
STEPS TO REPRODUCE
1. Use the display configuration in system settings to configure order and
resolution of screens.
2. When applying, the message "Couldn’t apply display configuration: The driver
rejected the output configuration" appears; correct resolution is not applied.
OBSERVED RESULT
Resolutions of 1920x1200 or lower are accepted, the native resolution not.
EXPECTED RESULT
Native resolution applied.
SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 42
KDE Plasma Version: 6.4.1
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1
Kernel Version: 6.13.12-200.fc41.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i7-6600U CPU @ 2.60GHz
Memory: 16 GiB of RAM (15.4 GiB usable)
Graphics Processor: Intel® HD Graphics 520
ADDITIONAL INFORMATION
This worked correctly with Plasma versions through 6.3; after an update to
6.4.0, this bug appeared - and is also present in 6.4.1.
Tried with different Linux kernels; same problem with 6.13.12, 6.14.x (various)
and 6.15.3.
Attempting to set the native resolution using kscreen-doctor gives a similar
error message:
$ kscreen-doctor output.DP-4.mode.45
applying config failed! The driver rejected the output configuration
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