Created attachment 151229 [details]
Artifacts on blurred surfaces with nVidia on Wayland

SUMMARY
With enabled blur effect and when ever the cursor moves across a blurred surface it leaves squared trails of it's path.
As soon as the blurred component receives a full redraw the blur gets normal again.
Like moving the window or hovering an item in the start menu.


STEPS TO REPRODUCE
1. Run Plasma in Wayland mode on nVidia
2. Move cursor across any blurred surface
3. Artifacts remain till the next full redraw.

OBSERVED RESULT
Artifacts left on blurred surfaces

EXPECTED RESULT
No artifacts on blurred surfaces as with X11

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20220809
KDE Plasma Version: 5.25.4
KDE Frameworks Version: 5.96.0
Qt Version: 5.15.5
Kernel Version: 5.18.15-1-default (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 1800X Eight-Core Processor
Memory: 15.5 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3080/PCIe/SSE2
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7A33
System Version: 2.0
nVidia driver: 515.65.01