42 lines
1.3 KiB
Nix
42 lines
1.3 KiB
Nix
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{self, ...}: {
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# Hybrid Intel + NVIDIA (PRIME) for laptops like the T480 (Intel UHD 620 +
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# NVIDIA MX150). Uses "offload" mode: the dGPU stays powered down by default
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# (minimal extra battery drain) and is only used for apps launched with
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# `nvidia-offload <cmd>`. It also pulls in the Intel GPU stack (gpuIntel).
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#
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# Bus IDs below are specific to the T480 (from `lspci`):
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# Intel 00:02.0 -> PCI:0:2:0
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# NVIDIA 01:00.0 -> PCI:1:0:0
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# Adjust for other machines.
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flake.nixosModules.gpuNvidiaPrime = {
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config,
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pkgs,
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...
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}: {
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imports = [self.nixosModules.gpuIntel];
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services.xserver.videoDrivers = ["nvidia"];
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hardware.nvidia = {
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modesetting.enable = true;
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# MX150 is Pascal (pre-Turing); the proprietary modules are the safe choice.
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open = false;
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nvidiaSettings = true;
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powerManagement.enable = true;
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prime = {
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# Offload keeps the NVIDIA GPU asleep until explicitly used. This gives
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# the `nvidia-offload` helper wrapper. Swap to sync mode if you want the
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# dGPU always driving the display (higher power draw).
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offload = {
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enable = true;
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enableOffloadCmd = true; # provides `nvidia-offload` wrapper
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};
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intelBusId = "PCI:0:2:0";
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nvidiaBusId = "PCI:1:0:0";
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};
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};
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};
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}
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