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How do I add a udev rule in NixOS to set my AMD GPU's performance level to 'high' ? (lemmings.world)

submitted 8 months ago by gunpachi@lemmings.world to c/nixos@lemmy.ml

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So I have been experiencing screen blackout when I use any refresh rate above 60Hz. On Arch I was able to solve this by setting a udev rule as mentioned in this ArchWiki article but it seems like I can't do the same in NixOS using the traditional way. Is there anything I need to add in the configuration.nix file to achieve the same ?

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[–] gunpachi@lemmings.world 2 points 8 months ago

I added the udev rule, but the issue was still happening when I resume after a suspend.

Strangely enough, I have not seen the issue since a clean install with only hyrpland (no Desktop environment installed alongside). No change to the rest of my config.

I had the same experience on Arch as well.