Proper configuration for Intel Meteor Lake Core Ultra 7 155H?

Help
1

Hi Folks,

Could somebody please share with me configuration for Intel Meteor Lake (Core Ultra 7 155H)?

I’m running KDE Plasma on a new laptop and everything is slow. For example a web browser or VSCode is very unpleasant to use. KDE Plasma (the same configuration) on an older laptop works completely fine.

So far I found I added configuration from Intel Graphics - NixOS Wiki and I added "i915.enable_psr=0" into boot.kernelParams which (I think) it makes more stable since without it I sometime got dmesg [drm] *ERROR* gt: timed out waiting for forcewake ack request..

I’m running stable NixOS with linuxPackages_latest from unstable. The thing I haven’t tried yet is to switch from X11 on Plasma 5 to Wayland on Plasma 6 but I don’t want to change too many things at once…

Thank you.

1 Like
2 
boot.initrd.kernelModules = ["xe"];

works for me.

3

Hey all!

Facing the same issue with 24.11, kernel 6.13.7 while loading the xe module.

  # Use latest kernel packages
  boot.kernelPackages = pkgs.linuxPackages_latest;

  # Load XE Intel driver
  boot.initrd.kernelModules = ["xe"];

Did either of you managed to resolve this issue?

Thank you!

4

Hey all,

I managed to solve my own issue, which had nothing to do with drivers. Had a setting overriding powerManagement.cpuFreqGovernor to powersave which caused laggy graphics and input.

On both balanced or performance everything runs as you’d expect.

5

New nixos user here and I have just installed it on my laptop with Intel Core Ultra 5 125H.

Is this kernel module xe neccessary?

6

I have the 155U - and latest kernel fixed nearly everything.