Hello.
I recently set up NixOs on my new Thinkpad L14 and it feels sluggish.
CPU is a Ryzen Pro 7 5875U (8C/16T) with an AMD Radeon integrated. This is a new laptop, performance shouldn’t be an issue for everyday tasks.
But I get ~40 FPS on glxgears
. I also see/feel some lags in other apps, like high latency between typing and seeing the letters in chromium; slow mouse movement in OrcaSlicer; and some other places. Firefox runs great though.
I run glxgears
with nvtop
open and I see up to 1% GPU usage by it. Somehow the performance is poor but the hardware is available to do more?
I don’t even know where to start troubleshooting.
The full config for my systems is in my dotfiles GitHub repo. And the part related to my laptop’s hardware is this:
boot.initrd.kernelModules = [ "amdgpu" ];
boot.kernelParams = [
"acpi_backlight=native"
"amd_pstate=guided"
# Load amdgpu at stage 1
"amdgpu"
"iommu=soft"
];
# AMD GPU
hardware.opengl.extraPackages = with pkgs; [
vaapiVdpau
# AMD ROCm OpenCL runtime
rocmPackages.clr
rocmPackages.clr.icd
amdvlk
];
hardware.opengl.extraPackages32 = with pkgs; [
driversi686Linux.amdvlk
];
environment.variables = {
# VAAPI and VDPAU config for accelerated video.
# See https://wiki.archlinux.org/index.php/Hardware_video_acceleration
"VDPAU_DRIVER" = "radeonsi";
"LIBVA_DRIVER_NAME" = "radeonsi";
};
# Most software has the HIP libraries hard-coded. Workaround:
systemd.tmpfiles.rules = [
"L+ /opt/rocm/hip - - - - ${pkgs.rocmPackages.clr}"
];
hardware.opengl = {
enable = true;
driSupport = true;
driSupport32Bit = true;
};
How can I get decent performance out of this laptop with NixOs? I’m lost here What am I missing?