Created attachment 163489 [details] video example SUMMARY maximizing a window on one screen when another application on a second monitor is already maximized creates render artifacts on second application STEPS TO REPRODUCE 1. Maximize application on second screen 2. Maximize application on first screen 3. Observe second screen OBSERVED RESULT screen 2 has now some artifacts EXPECTED RESULT screen 2 should be unaffected SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.27.80 KDE Frameworks Version: 5.245.0 Qt Version: 6.6.0 Kernel Version: 6.6.2-zen1-1-zen (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5800X3D 8-Core Processor Memory: 31,3 GiB of RAM Graphics Processor: AMD Radeon RX 6600 XT
Cannot reproduce with two adjacent-but-not-overlapping screens. Are your screens somehow overlapping on the Display & Monitor page in System Settings?
Thanks for taking a look at this. I checked my settings. No, I don't think they are overlapping. After testing a bit more, I discovered that it mostly happens with KDE applications like Discover. Deactivating the Maximize Desktop effect or putting a digital clock widget on the second monitor seems to fix the problem. You could see if you have either of those things and try with and without them. Feel free to ask for more info if you need to.
Still can't reproduce with or without either of those applied.
Could you share your display settings when you can produce this? e.g., the output of `kscreen-doctor -o`. Thanks! I am suspecting that this might be related to the fractional scaling stuff, like https://bugs.kde.org/show_bug.cgi?id=477791
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Output: 1 DP-1 enabled connected priority 1 DisplayPort Modes: 0:1920x1080@60! 1:1920x1080@240* 2:1920x1080@144 3:1920x1080@120 4:1920x1080@120 5:1920x1080@96 6:1920x1080@72 7:1920x1080@60 8:1920x1080@60 9:1920x1080@60 10:1920x1080@50 11:1920x1080@50 12:1920x1080@48 13:1680x1050@60 14:1600x900@60 15:1280x1024@75 16:1280x1024@60 17:1440x900@60 18:1280x800@60 19:1152x864@75 20:1280x720@60 21:1280x720@60 22:1280x720@50 23:1024x768@75 24:1024x768@60 25:800x600@75 26:800x600@60 27:720x576@50 28:720x480@60 29:720x480@60 30:720x480@60 31:720x480@60 32:640x480@75 33:640x480@60 34:640x480@60 35:640x480@60 36:720x400@70 37:1280x1024@60 38:1024x768@60 39:1280x800@60 40:1920x1080@60 41:1600x900@60 42:1368x768@60 43:1280x720@60 Geometry: 0,0 1920x1080 Scale: 1 Rotation: 1 Overscan: 0 Vrr: Automatic RgbRange: unknown HDR: incapable Wide Color Gamut: incapable ICC profile: none Output: 2 DP-2 enabled connected priority 3 DisplayPort Modes: 0:1920x1080@60*! 1:1680x1050@60 2:1400x1050@60 3:1600x900@60 4:1280x1024@75 5:1280x1024@60 6:1440x900@60 7:1280x800@60 8:1152x864@75 9:1280x720@60 10:1024x768@75 11:1024x768@60 12:832x624@75 13:800x600@75 14:800x600@60 15:800x600@56 16:640x480@75 17:640x480@60 18:720x400@70 19:1280x1024@60 20:1024x768@60 21:1280x800@60 22:1920x1080@60 23:1600x900@60 24:1368x768@60 25:1280x720@60 Geometry: 1920,0 1920x1080 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: unknown HDR: incapable Wide Color Gamut: incapable ICC profile: none
Retested using the latest KDE plasma 6.0 beta 2 and it seems that this is no longer an issue