Created attachment 156584 [details] Sample video of the bug in action. SUMMARY Prior to updating KDE Plasma to 5.27, when the desktop effect "TV Glitch [Burn-My-Windows]" (downloaded from the KDE Store) animates a window opening, blur effect is not applied until the TV Glitch animation ends. But now, I can see a blur square while TV Glitch is animating. Same with when a window closes, I can now see the blur effect while the TV Glitch effect for closing a window is animating. This effectively puts a square blurred box behind the animation, which was not present before updating. This bug is also present alongside the effects "TV Effect [Burn-My-Windows]" and "Glitch [Burn-My-Windows]". STEPS TO REPRODUCE 1. Open System Settings 2. Go to Workspace Behavior > Desktop Effects 3. Check "Blur" and select "TV Glitch [Burn-My-Windows]" as the Window Open/Close Animation. 4. Open/Close any window to see blur coincide with TV Glitch animation (Which was not the case prior to KDE Plasma 5.27) OBSERVED RESULT - Blur square behind TV Glitch animation when opening or closing a window. EXPECTED RESULT - Blur effect applied after TV Glitch animation ends when opening a window. Blur effect disappears before TV Glitch animation starts when closing a window. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Garuda Linux x86_64 2.6.15-1 KDE Plasma Version: 5.27.1 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8
Hello, please note that I have already reported this issue on Burn-My-Windows' Github page, but the developers there believe this might be a KWin issue. Thank you!
Created attachment 157701 [details] Screenshot of the visual bug occurring on a 'Thumbnail Grid' task switcher.
I've attached what I assume is the same bug occurring on my device. The task switcher, for the first second(ish), displays as a blurred grey box. After a second, it 'loads in' and looks normal. This only occurs when: 1. Using plasma wayland 2. 'Visualization' for task switchers is on. 3. Using a Burn My Windows 'Window Open/Close Animation' desktop effect.
Created attachment 178093 [details] Kvantum config that might be helpful to reproduce the bug Also reproducible with Kvantum and Blur glassy global theme (https://store.kde.org/p/2138237) with wayland. If my memory did not go wrong, could also be reproducible in X11. My environment: Operating System: Arch Linux KDE Plasma Version: 6.2.5 KDE Frameworks Version: 6.10.0 Qt Version: 6.8.2 Kernel Version: 6.13.1-arch2-1 (64-bit) Graphics Platform: Wayland Processors: 12 × Intel® Core™ i5-10400 CPU @ 2.90GHz Memory: 62.6 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 630 Manufacturer: HASEE Computer Product Name: NKx0Sx