feat(nvidia): enable powerManagment

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electria 2026-06-24 10:11:14 -07:00
commit f22e33c967
Signed by: electria
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@ -22,7 +22,12 @@ in
# Enable this if you have graphical corruption issues or application crashes after waking
# up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead
# of just the bare essentials.
# powerManagement.enable = false;
powerManagement.enable = true;
# the following is from @tlater:matrix.tlater.net (Lix Off Topic, 2026-06-24)
# `powerManagement.enable` maps to this set of NVIDIA driver features: https://download.nvidia.com/XFree86/Linux-x86_64/610.43.02/README/powermanagement.html
# You can read through those docs yourself, but tl;dr: modern GPUs have more memory than can normally be stored on suspend, so they need a workaround.
# The modern open source drivers can use some cool kernel features that were behind the GPL lock beforehand to achieve that, the proprietary drivers are stuck with a hack. But basically, you always want to enable that option on NixOS.
# The `powermanagement.finegrained` stuff on the other hand has to do with multi-GPU setups. The two options should really not be grouped together like this.
# Use the NVidia open source kernel module (not to be confused with the
# independent third-party "nouveau" open source driver).