Created attachment 121387 [details] Video, which shows the green flicker SUMMARY After login to KDE a green flicker appears. STEPS TO REPRODUCE 1.Login to KDE 2.Wait until desktop is fully build up OBSERVED RESULT green flicker EXPECTED RESULT no green flicker SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5.16.2 KDE Frameworks Version: 5.59.0 Qt Version: 5.19.0 Kernel:5.16-1,5.2rc7 ADDITIONAL INFORMATION Not sure wether its KDE or. frameworks-plasma Could also be kernel side problem as it just appears with the kernels mentioned above. Already issued on Manjaro Forum: https://forum.manjaro.org/t/nach-kernel-update-grunes-flackern/93071
Updated KDE Plasma to 5.16.3: issues still there.
After waking-up of standby-mode with LK 4.19 the issue appears too, then after reboot everything fine again.
Because of https://forum.manjaro.org/t/kernel-5-2-1-1-on-amd-hardware-weird-graphic-glitches/95853 I did a BIOS update but no improvements. So I did some further testing and created a fresh KDE user and surprisingly no issue on the fresh profile (with the problematic kernels mentioned above) Also noticed some boot errors and shutdown errors when using the problematic kernels. Additionally: When first login to the not fresh user and then the log out and login to the fresh user the issue appears too.
Fixed the boot,shutdown errors but still no improvements.
Seems to be related to Mesa. See https://bugs.freedesktop.org/show_bug.cgi?id=110199 (RX 400-500 issue with 75hz monitors)