https://bugs.kde.org/show_bug.cgi?id=479055

            Bug ID: 479055
           Summary: KWin effects show up as black on embedded devices
    Classification: Plasma
           Product: kwin
           Version: git master
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: kwin-bugs-n...@kde.org
          Reporter: espi...@gmail.com
  Target Milestone: ---

Created attachment 164463
  --> https://bugs.kde.org/attachment.cgi?id=164463&action=edit
Logs from KWin when opening the task switcher

SUMMARY
On the Plasma Mobile Nightly branches of postmarketOS
(https://wiki.postmarketos.org/wiki/Nightly), the task switcher (KWin effect)
shows up as a black screen.

I currently suspect that Qt 6 compiled with OpenGL ES2
(https://git.alpinelinux.org/aports/tree/community/qt6-qtbase/APKBUILD)
triggers this issue.

STEPS TO REPRODUCE
1. Run Plasma Desktop or Plasma Mobile on postmarketOS on an ARM device
2. Open a KWin effect

OBSERVED RESULT
The screen is black

EXPECTED RESULT
The effect displays

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 6.6

ADDITIONAL INFORMATION
See logs attached

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