nixos-hardware/gpd/pocket-3/default.nix

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{ lib, pkgs, ... }:
let inherit (lib) mkDefault mkIf;
in
{
imports = [
../../common/pc/laptop
../../common/pc/laptop/ssd
../../common/hidpi.nix
];
# Necessary kernel modules
boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "usbhid" "thunderbolt" ];
# GPU is an Intel Iris Xe, on a “TigerLake” mobile CPU
boot.initrd.kernelModules = [ "i915" ]; # Early loading so the passphrase prompt appears on external displays
services.xserver.videoDrivers = [ "intel" ];
hardware.opengl.extraPackages = with pkgs; [ intel-media-driver vaapiIntel ];
boot.kernelParams = [
# S3 suspend is broken as of Sept. 2022 (screen does not come back properly), use S2
"mem_sleep_default=s2idle"
# The GPD Pocket3 uses a tablet OLED display, that is mounted rotated 90° counter-clockwise
"fbcon=rotate:1" "video=DSI-1:panel_orientation=right_side_up"
];
fonts.fontconfig = {
subpixel.rgba = "vbgr"; # Pixel order for rotated screen
# The OLED display has √(1920² + 1200²) px / 8in ≃ 283 dpi
# Per the documentation, antialiasing, hinting, etc. have no visible effect at such high pixel densities anyhow.
# Set manually, as the hiDPI module had incorrect settings prior to NixOS 22.11; see nixpkgs#194594.
hinting.enable = mkDefault false;
antialias = mkIf (lib.versionOlder (lib.versions.majorMinor lib.version) "22.11") false;
};
# More HiDPI settings
services.xserver.dpi = 280;
# Necessary for audio support on the 1195G7 model
boot.extraModprobeConfig = ''
options snd-intel-dspcfg dsp_driver=1
'';
}