SUMMARY When I put any video player in the second screen, maximize the window, and then i click on "Fullscreen" (on the video player (ex. Youtube, Twitch, MpvPlayer, ecc)), the screen goes to black, but the video is running and i can click the screen for leave fullscreen mode and all re-turn to normal. If i click "Fullscreen" in a window NOT maximized, the video goes fullscreen without problem. STEPS TO REPRODUCE 1. Put a window with video player in the second screen 2. Maximize this window 3. Click "Fullscreen" or another button for watch the video in fullscreen OBSERVED RESULT Black Screen and the video still reproduce EXPECTED RESULT The video goes to fullscreen SOFTWARE/OS VERSIONS Linux: Debian 11 stable KDE Plasma Version: 5.20.5 KDE Frameworks Version: 5.78.0 Qt Version: 5.15.2
This bug was reported against an outdated version of KWin. We have made many changes since the. If the issue persists in newer versions can you reopen the bug report updating the version number.