SUMMARY When Pressing F11 or going Fullscreen on a Video on any Browser, You'll get a Blackscreen, but disabling kwin4_effect_fullscreen (Also named Fullscreen in the Desktop Effects Tab) Fixed it. STEPS TO REPRODUCE 1. Enable kwin4_effect_fullscreen (Should be automatically enabled) 2. Go Into any Browser and maximize It 3. Press F11, and then you'll have a Blackscreen OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Linux: Arch (available in About System) KDE Plasma Version: 5.20.1 KDE Frameworks Version: 5.75.0 Qt Version: 5.15.1
I can confirm this bug is still present. VERSIONS Linux: Arch (available in About System) KDE Plasma Version: 5.20.4 KDE Frameworks Version: 5.77.0 Qt Version: 5.15.2
I can confirm that the bug is still present. Version Operating System: openSUSE Tumbleweed 20201229 KDE Plasma Version: 5.20.4 KDE Frameworks Version: 5.77.0 Qt Version: 5.15.2 Kernel Version: 5.10.1-1-default OS Type: 64-bit Processors: 4 × Intel® Core™ i5-7500 CPU @ 3.40GHz Memory: 15.6 GiB of RAM Graphics Processor: GeForce GTX 1060 3GB/PCIe/SSE2
Still have the bug. Disabling the fullscreen animation fixes it. Operating System: Manjaro Linux KDE Plasma Version: 5.21.4 KDE Frameworks Version: 5.81.0 Qt Version: 5.15.2 Kernel Version: 5.10.32-1-MANJARO OS Type: 64-bit Graphics Platform: X11 Processors: 12 × Intel® Core™ i7-8750H CPU @ 2.20GHz Memory: 15.5 GiB of RAM Graphics Processor: GeForce GTX 1060/PCIe/SSE2
*** This bug has been marked as a duplicate of bug 435178 ***