Created attachment 164463 [details] 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
Created attachment 164792 [details] video showing the screen going black when taskswitcher is invoken (pmOS edge, kde-nightly, op6-enchilada)
A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/4866
Git commit a05a6d8727e0644106e38191b2aeb26270a23dbd by Xaver Hugl. Committed on 10/01/2024 at 20:56. Pushed by zamundaaa into branch 'master'. effect/offscreenquickview: always use GL_RGBA8 GL_RGB8 isn't supported by OpenGL ES M +1 -1 src/effect/offscreenquickview.cpp https://invent.kde.org/plasma/kwin/-/commit/a05a6d8727e0644106e38191b2aeb26270a23dbd
Git commit bce104708096f754ef091aec9a1bd4b71c0b2edc by Xaver Hugl. Committed on 10/01/2024 at 23:47. Pushed by vladz into branch 'Plasma/6.0'. effect/offscreenquickview: always use GL_RGBA8 GL_RGB8 isn't supported by OpenGL ES (cherry picked from commit a05a6d8727e0644106e38191b2aeb26270a23dbd) M +1 -1 src/effect/offscreenquickview.cpp https://invent.kde.org/plasma/kwin/-/commit/bce104708096f754ef091aec9a1bd4b71c0b2edc