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59 lines
1.4 KiB
Markdown
59 lines
1.4 KiB
Markdown
# NVIDIA Setup Notes
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## Laptop Bus ID Configuration Required
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**File to edit:** `/home/zeph/nix-flake/system/nvidia-laptop.nix`
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### Steps:
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1. Run this command on your **laptop**:
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```bash
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sudo lshw -c display
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```
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2. Look for the `bus info` lines in the output:
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- **Intel GPU**: `bus info: pci@0000:00:02.0`
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- **NVIDIA GPU**: `bus info: pci@0000:01:00.0`
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3. Convert the PCI addresses to NixOS format:
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- `pci@0000:00:02.0` → `PCI:0:2:0` (Intel)
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- `pci@0000:01:00.0` → `PCI:1:0:0` (NVIDIA)
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4. Update the values in `nvidia-laptop.nix`:
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```nix
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intelBusId = "PCI:0:2:0"; # Replace with your Intel bus ID
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nvidiaBusId = "PCI:1:0:0"; # Replace with your NVIDIA bus ID
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```
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5. Rebuild after updating:
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```bash
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sudo nixos-rebuild switch --flake /home/zeph/nix-flake#laptop
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```
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### Format Conversion Example:
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```
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pci@0000:XX:YY.Z → PCI:XX:YY:Z
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```
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Remove the `0000:` prefix and convert the `.` to `:`
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---
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## Testing NVIDIA Setup
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### Desktop (RTX 3080):
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- `nvidia-smi` - Check if driver is loaded
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- `nvtop` - Monitor GPU usage
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- `glxinfo | grep NVIDIA` - Verify OpenGL
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### Laptop (GTX 1050):
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- `nvidia-smi` - Check if driver is loaded
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- `nvidia-offload glxgears` - Test offload mode
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- `nvtop` - Monitor both Intel and NVIDIA GPUs
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### Using NVIDIA on Laptop:
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- Normal apps use Intel iGPU (better battery)
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- Prefix GPU-intensive apps with `nvidia-offload`:
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```bash
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nvidia-offload <program>
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```
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