This issue is present since all driver versions. It seems like that the VRAM handling on linux does not work well, as soon it gets more full.
As soon it reaches the near 8 GB VRAM using on the second monitor Discord or other applications, will result into that the drawing and performance does crash instantly down to 30 FPS from 80 FPS. Also textures do look really weird and not clean.
Operating System: CachyOS Linux
KDE Plasma Version: 5.27.80
KDE Frameworks Version: 5.245.0
Qt Version: 6.6.0
Kernel Version: 6.6.1-1-cachyos-sched-ext (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor
Memory: 31,2 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1070 Ti/PCIe/SSE2
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: B550 AORUS ELITE AX V2
Bugreport is attached
nvidia-bug-report.log.gz (2.9 MB)