https://bugs.kde.org/show_bug.cgi?id=463619

            Bug ID: 463619
           Summary: [Regression] Unable to change desktop resolution
                    beyond natively supported resolutions on Wayland
    Classification: Plasma
           Product: KScreen
           Version: 5.26.4
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: common
          Assignee: kscreen-bugs-n...@kde.org
          Reporter: arazec...@gmail.com
  Target Milestone: ---

SUMMARY
***
Previously, I was able to go into display settings and set my Wayland desktop
to whatever resolution I wanted it to be. However, I am now locked into 4k(the
only natively supported resolution) with a message stating: 

"3840x2160 (16:9) is the only supported resolution supported by this display

Using unsupported resolutions was possible in the Plasma X11 session, but they
were never guaranteed to work, and are not available in this Plasma Wayland
session."

This is on a Manjaro distribution, and this has recurred as of two stable
branch system updates ago I believe. Before that, I was able to change my
desktop resolution freely on Wayland.

I have even tried a trick I saw on another forum with a extra boot option,
"video=eDP-1:2560x1440@60" with no avail. Even if that did work, I shouldn't
have to be doing that seeing as I didn't need to in the past. Regardless, it
didn't work.
***


STEPS TO REPRODUCE
1. Go to display settings
2. Try to change resolution
3. Observe that the resolution can't be changed

OBSERVED RESULT
A message stating I'm locked to natively supported resolutions.

EXPECTED RESULT

A drop down menu of resolutions similar to X11.


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Manjaro 22.0 Sikaris
(available in About System)
KDE Plasma Version: 5.26.4
KDE Frameworks Version: 5.101.0
Qt Version: 5.15.7

ADDITIONAL INFORMATION

This has occurred in the past with Wayland as it was still missing a lot of
utility, but the functionality was added in several months back. It has now
regressed, and is missing once again.

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