Switching to TTY while a wallpaper is playing crashes my KDE session

[davitz]

Describe the bug

If I have any wallpapers playing and then switch to TTY (e.g. Ctrl+Alt+F2) it crashes my KDE session. While the TTY session itself works well enough, if I then try to switch back to KDE (Alt+F1), the output of my entire system freezes irreparably.

Workshop link

Appears to be replicable with basically any wallpaper, but here's one example of one I used to replicate it:
https://steamcommunity.com/sharedfiles/filedetails/?id=3213052062

System Information

• Kde: 6.1.3
• Qt: 6.7.2
• OS: EndeavourOS
• Installation Source: AUR
• Wallpaper Engine version: 2.5.28

Additional context

Pausing the wallpaper(s) first appears to prevent the issue (e.g. set wallpapers to pause on maximized window, maximize a window, then switch to TTY does not cause the problem)

[zany130]

can't reproduce on latest qt6 branch

tried the same wallpaper
Operating System: Bazzite 40
KDE Plasma Version: 6.1.3
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2
Kernel Version: 6.9.12-203.fsync.fc40.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 5600X 6-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: AMD Radeon RX 6700 XT

[davitz]

Interesting. Will post more complete details of my setup to help narrow down the difference. Looks like the biggest difference is going to be that I'm on NVIDIA

Operating System: EndeavourOS
KDE Plasma Version: 6.1.3
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2
Kernel Version: 6.10.2-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7800X3D 8-Core Processor
Memory: 31.0 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3080/PCIe/SSE2

[davitz]

I can't imagine the fix in my pull request would have detrimental effects for someone who doesn't have the issue, but if it's preferable I can add a check so it only applies the fix for NVIDIA cards.