diff --git a/nixos/modules/hardware/video/nvidia.nix b/nixos/modules/hardware/video/nvidia.nix index 85c8350fbbb2..a9b04bcc8595 100644 --- a/nixos/modules/hardware/video/nvidia.nix +++ b/nixos/modules/hardware/video/nvidia.nix @@ -383,7 +383,8 @@ in RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia%c{3} c 195 %c{3}" KERNEL=="nvidia_uvm", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia-uvm c $$(grep nvidia-uvm /proc/devices | cut -d \ -f 1) 0'" KERNEL=="nvidia_uvm", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia-uvm-tools c $$(grep nvidia-uvm /proc/devices | cut -d \ -f 1) 1'" - '' + optionalString cfg.powerManagement.finegrained '' + '' + optionalString cfg.powerManagement.finegrained ( + optionalString (versionOlder config.boot.kernelPackages.kernel.version "5.5") '' # Remove NVIDIA USB xHCI Host Controller devices, if present ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x0c0330", ATTR{remove}="1" @@ -392,7 +393,7 @@ in # Remove NVIDIA Audio devices, if present ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x040300", ATTR{remove}="1" - + '' + '' # Enable runtime PM for NVIDIA VGA/3D controller devices on driver bind ACTION=="bind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030000", TEST=="power/control", ATTR{power/control}="auto" ACTION=="bind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030200", TEST=="power/control", ATTR{power/control}="auto" @@ -400,7 +401,7 @@ in # Disable runtime PM for NVIDIA VGA/3D controller devices on driver unbind ACTION=="unbind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030000", TEST=="power/control", ATTR{power/control}="on" ACTION=="unbind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030200", TEST=="power/control", ATTR{power/control}="on" - ''; + ''); boot.extraModprobeConfig = mkIf cfg.powerManagement.finegrained '' options nvidia "NVreg_DynamicPowerManagement=0x02"