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Better default for amdgpuBusId

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4JX 2024-01-28 01:25:14 +01:00 committed by mergify[bot]
parent ed01236ece
commit cc65e27670
2 changed files with 7 additions and 1 deletions
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6
lenovo/legion/16ach6h/README.md
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@ -3,6 +3,12 @@ Due to the introduction of DDG feature, you may toggle DDG frequently, so for th
**But It will slow down NixOS evaluation by factor 2 and increase memory usage.**
So if you don't need specialization feature, you can just use hybrid only configuration or nvidia only (DDG only) configuration
## Using multiple drives with this configuration
When using more than one drive, the value of `hardware.nvidia.prime.amdgpuBusId` will change from the default of `PCI:5:0:0`.
Make sure you override this default in your personal configuration. For two drives, it should be `PCI:6:0:0`.
## Setup at the time of testing
```
$ nix-info -m

2
lenovo/legion/16ach6h/hybrid/default.nix
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@ -28,7 +28,7 @@
powerManagement.enable = lib.mkDefault true;
prime = {
amdgpuBusId = "PCI:6:0:0";
amdgpuBusId = lib.mkDefault "PCI:5:0:0";
nvidiaBusId = "PCI:1:0:0";
};
};