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Nvidia: Add tips to fixing suspend issues (#359)

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* Add nvidia suspend/wakeup related services and kernel parameters

* Include Nix equivalent configs
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tchofy 2023-09-29 20:36:22 +00:00 committed by GitHub
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@ -104,3 +104,24 @@ options nvidia NVreg_RegistryDwords="PowerMizerEnable=0x1; PerfLevelSrc=0x2222;
```
Reboot your computer and it should be working.
## Fixing suspend/wakeup issues
Enable the services `nvidia-suspend.service`, `nvidia-hibernate.service` and `nvidia-resume.service`, they will be started by systemd when needed.
Add `nvidia.NVreg_PreserveVideoMemoryAllocations=1` to your kernel parameters if you don't have it already.
{{< hint type=important >}} Suspend functions are currently broken on `nvidia-open-dkms` [due to a bug](https://github.com/NVIDIA/open-gpu-kernel-modules/issues/472), so make sure you're on `nvidia-dkms`. {{< /hint >}}
For Nix users, the equivalent of the above is
```nix
# configuration.nix
boot.kernelParams = [ "nvidia.NVreg_PreserveVideoMemoryAllocations=1" ];
hardware.nvidia.powerManagement.enabled = true
# Making sure to use the proprietary drivers until the issue above is fixed upstream
hardware.nvidia.open = false
```