Seeking Advice on Improving KDE Plasma 6 Smoothness with Intel Arc A770M on NixOS Unstable

Hi everyone,

I’m running NixOS Unstable with KDE Plasma 6 and an Intel Arc A770M GPU. I’ve been noticing that my desktop environment isn’t as smooth as it is on my Arch and Debian installs with the same hardware. Specifically, I experience faintly noticeable tearing or hiccups when moving or resizing windows quickly, which feels similar to what you might see on Windows OS when a GPU driver isn’t properly installed.

I’ve confirmed that the Intel driver module is loaded, so I’m unsure what else might be causing this issue. On Arch and Debian, I didn’t need to install anything extra to get smooth performance, so I’m wondering if there’s something specific to NixOS that I’m missing.

Are there any particular settings or configurations I should check to improve the smoothness of my desktop experience on NixOS? Any advice or troubleshooting tips would be greatly appreciated!

Thanks in advance!

I’d wanna examine some version differences. Perhaps the output of glxinfo -B on both systems.