diff options
Diffstat (limited to 'modules/nixos-hardware/lenovo/thinkpad/l14/amd/default.nix')
| -rw-r--r-- | modules/nixos-hardware/lenovo/thinkpad/l14/amd/default.nix | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/modules/nixos-hardware/lenovo/thinkpad/l14/amd/default.nix b/modules/nixos-hardware/lenovo/thinkpad/l14/amd/default.nix new file mode 100644 index 000000000000..c2d1534fd178 --- /dev/null +++ b/modules/nixos-hardware/lenovo/thinkpad/l14/amd/default.nix @@ -0,0 +1,23 @@ +{ config, lib, pkgs, ... }: + +{ + imports = [ + ../. + ../../../../common/cpu/amd + ]; + + boot.kernelParams = [ + # With BIOS version 1.12 and the IOMMU enabled, the amdgpu driver + # either crashes or is not able to attach to the GPU depending on + # the kernel version. I've seen no issues with the IOMMU disabled. + # + # BIOS version 1.13 claims to fix IOMMU issues, but we leave the + # IOMMU off to avoid a sad experience for those people that drew + # the short straw when they bought their laptop. + "iommu=off" + ]; + + # As of writing this, Linux 5.8 is the oldest kernel that is still + # supported and has decent Renoir support. + boot.kernelPackages = lib.mkIf (lib.versionOlder pkgs.linux.version "5.8") pkgs.linuxPackages_latest; +} |