122 lines
3.1 KiB
Nix
122 lines
3.1 KiB
Nix
# Surface Pro 9
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{
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config,
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lib,
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pkgs,
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modulesPath,
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...
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}:
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let
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bootUUID = "B2D7-96C3"; # The UUID of the boot partition.
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luksUUID = "f5ff391a-f2ef-4ac3-9ce8-9f5ed950b212"; # The UUID of the locked LUKS partition.
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in
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{
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imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
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boot = {
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# NOTE: Uncomment to use a default kernel and skip full kernel rebuilds
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#kernelPackages = lib.mkForce pkgs.linuxPackages_latest;
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# NOTE: Loading the camera driver results in a kernel panic on 6.10 kernels. See https://github.com/linux-surface/linux-surface/issues/1516
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blacklistedKernelModules = [
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"intel-ipu6"
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"intel-ipu6-isys"
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];
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# Enable antenna aggregation
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extraModprobeConfig = ''
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options iwlwifi 11n_disable=8
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'';
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initrd = {
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availableKernelModules = [
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"surface_aggregator"
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"surface_aggregator_registry"
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"surface_aggregator_hub"
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"surface_hid_core"
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"hid_multitouch"
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"8250_dw"
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"intel_lpss"
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"intel_lpss_pci"
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"xhci_pci"
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"thunderbolt"
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"nvme"
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"usb_storage"
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"sd_mod"
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"surface_kbd"
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"pinctrl_tigerlake"
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];
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kernelModules = [
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"surface_aggregator"
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"surface_aggregator_registry"
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"surface_aggregator_hub"
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"surface_hid_core"
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"surface_hid"
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"hid_multitouch"
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"8250_dw"
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"intel_lpss"
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"intel_lpss_pci"
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"surface_kbd"
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"pinctrl_tigerlake"
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];
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};
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kernel.sysctl = {
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# Try to reduce swappiness - Khanda hates paging, even to NVMe storage
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"vm.swappiness" = 20;
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};
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kernelModules = [
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"kvm-intel"
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"surface_aggregator"
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"surface_aggregator_registry"
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"surface_aggregator_hub"
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"surface_hid_core"
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"surface_hid"
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"hid_multitouch"
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"8250_dw"
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"intel_lpss"
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"intel_lpss_pci"
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"surface_kbd"
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"pinctrl_tigerlake"
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];
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kernelParams = [
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"pci=hpiosize=0" # Prevent ACPI interrupt storm. See https://github.com/linux-surface/linux-surface/wiki/Surface-Pro-9#acpi-interrupt-storm
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"nvme_core.default_ps_max_latency_us=0" # Disable NVME powersaving to prevent system stuttering. See https://forums.linuxmint.com/viewtopic.php?t=392387
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];
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};
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# Configure the main filesystem.
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aux.system.filesystem = {
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enable = true;
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partitions = {
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boot = "/dev/disk/by-uuid/${bootUUID}";
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luks = "/dev/disk/by-uuid/${luksUUID}";
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};
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swapFile = {
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enable = true;
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size = 16384;
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};
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};
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# Change I/O scheduler to BFQ to try and reduce stuttering under load.
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services.udev.extraRules = ''
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ACTION=="add|change", KERNEL=="nvme0*", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="bfq"
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'';
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hardware = {
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cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
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ipu6 = {
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enable = true;
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platform = "ipu6ep";
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};
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};
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# Limit the number of cores Nix can use
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nix.settings.cores = 8;
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# Install/configure additional drivers, particularly for touch
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environment.systemPackages = with pkgs; [ libwacom-surface ];
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}
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