nixos-hardware/lenovo/legion/16ach6h
2024-03-18 22:30:49 +07:00
..
edid 16ach6h: re-enable edid for internal display only 2024-03-18 22:30:49 +07:00
hybrid 16ach6h: re-enable edid for internal display only 2024-03-18 22:30:49 +07:00
nvidia Update lenovo/legion/16ach6h/nvidia/default.nix 2023-02-09 09:04:15 +00:00
default.nix 16ach6h: Do not duplicate nvidia config 2024-02-01 10:14:09 +00:00
README.md Better default for amdgpuBusId 2024-02-01 10:14:09 +00:00

Introduction

Due to the introduction of DDG feature, you may toggle DDG frequently, so for the default settings of this laptop, we use "specialization" feature of Nix so that you can easily select the required graphics card driver in the startup menu.
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
 - system: `"x86_64-linux"`
 - host os: `Linux 6.0.9, NixOS, 22.11 (Raccoon), 22.11beta19.c9538a9b707`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.11.0`
 - channels(root): `"nixos-22.11"`
 - nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixos`
$ lspci
...
01:00.0 VGA compatible controller: NVIDIA Corporation GA104M [GeForce RTX 3070 Mobile / Max-Q] (rev a1)
...
06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cezanne (rev c5)
...