SUMMARY *** Once Minecraft goes fullscreen or leaves fullscreen, my Firefox tab on my second monitor turns blank until I mouse over it. I demonstrated it on YouTube, but it occurs on all webpages. I was also using a third party launcher, but the issue also occurs on the official Minecraft launcher. I tried to recreate the issue in Cyberpunk 2077, but the issue didn't occur. It may be something more specific to Minecraft rather than affecting all fullscreen programs. *** STEPS TO REPRODUCE 1. Open Firefox on a second monitor (I'm not sure if it is actually a problem with second monitors, but it would only be noticeable for those who have one) 2. Launch Minecraft into fullscreen OBSERVED RESULT Firefox tab turns blank, could take a few seconds to actually update. EXPECTED RESULT My firefox tab would continue displaying as normal. SOFTWARE/OS VERSIONS Linux: 5.15.6 KDE Plasma Version: 5.23.4 KDE Frameworks Version: 5.88.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION Nvidia Driver 495.44 on X11
IMPORTANT: Forget to link video of the issue - https://youtu.be/a0mdbBPtyPo
Edit: And it's just not Minecraft. The issue has also occurred with Team Fortress 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This bug was reported against an outdated version of KWin.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.