Created attachment 184916 [details] A video of the issue SUMMARY When anything is displayed above it, such as - the shadow of another window - a notification - spectacle "recording in this section" markings the thumbnails strongly flicker. STEPS TO REPRODUCE 1. Activate Thumbnail aside in the Desktop Effects settings 2. add a window to the thumbnails (Default keybinding: Ctrl+Win+T) 3. drag a window over it OBSERVED RESULT Strong flickering whenever another window overlaps with the thumbnail EXPECTED RESULT No flickering. SOFTWARE/OS VERSIONS Operating System: Fedora Linux 42 KDE Plasma Version: 6.4.4 KDE Frameworks Version: 6.17.0 Qt Version: 6.9.1 Kernel Version: 6.16.5-200.fc42.x86_64 (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5700X 8-Core Processor Memory: 32 GiB of RAM (31.3 GiB usable) Graphics Processor: NVIDIA GeForce GTX 1660 SUPER ADDITIONAL INFORMATION See video.
I'm not able to reproduce this in git-master with an AMD GPU or with Plasma 6.4.5 with an NVIDIA GPU. Operating System: Solus 4.7 KDE Plasma Version: 6.4.5 KDE Frameworks Version: 6.18.0 Qt Version: 6.9.2 Are you still seeing this bug with Plasma 6.4.5? Also, are you using the proprietary NVIDIA drivers? If so, which version?
After writing that out, I do see flickering in thumbnail-aside with Obsidian Notes behind it, while I type into this report or Obsidian. I also see this flickering in git-master, typing into KWrite while that window is behind the thumbnail.