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nixos-hardware/dell/inspiron/5515/default.nix
Guillaume Girol 3b54f86b53 dell inspiron 5515: add early kms
since the update to 23.11, the screen would remain black frequently on
boot. Pressing alt+sysrq+k would make the display manager start.
Empirically, setting early kms up has solved the issue.
2024-02-01 10:08:38 +00:00

37 lines
1.3 KiB
Nix

{ lib, pkgs, ... }:
{
imports = [
../../../common/pc/laptop
../../../common/pc/ssd
];
hardware.enableRedistributableFirmware = lib.mkDefault true;
# touchpad identifies itself as DELL0A78:00 27C6:0D42 Touchpad in xinput list
# it sometimes fails to register (ps2 mouse emulation works, but not scrolling)
# hack around it by unloading and reloading module i2c_hid
systemd.services.fix-touchpad = {
path = [ pkgs.kmod ];
serviceConfig.ExecStart = ''${pkgs.systemd}/bin/systemd-inhibit --what=sleep --why="fixing touchpad must finish before sleep" --mode=delay ${./fix_touchpad.sh}'';
serviceConfig.Type = "oneshot";
description = "reload touchpad driver";
# must run at boot (and not too early), and after suspend
wantedBy = [ "display-manager.service" "post-resume.target" ];
# prevent running before suspend
after = [ "post-resume.target" ];
};
# so that post-resume.service exists
powerManagement.enable = true;
# fix suspend
# https://bbs.archlinux.org/viewtopic.php?id=266108 says linux >= 5.12 required
boot.kernelPackages = lib.mkIf (lib.versionOlder pkgs.linux.version "5.12") pkgs.linuxPackages_latest;
# sometimes boots to a black screen, and pressing alt+sysrq+k makes the
# display manager start
# fixed by early kernel modesetting
boot.initrd.kernelModules = [ "amdgpu" ];
}