mynix: work around secondary gpu reset

Signed-off-by: Myned <dev@bjork.tech>

machines/mynix/default.nix

@@ -1,4 +1,4 @@
-{
+{config, ...}: {
   imports = [
     ./disko.nix
     ./hardware-configuration.nix
@@ -46,85 +46,14 @@
   #           `-    \`_`"'-
   #// services.logind.powerKey = "ignore"; # Disable power button
 
-  # Mount external drives on boot
-  fileSystems = {
-    "/mnt/gayme" = {
-      device = "/dev/disk/by-label/gayme";
-      options = [
-        "noatime"
-        "nofail"
-        "users"
-        "exec"
-        "x-gvfs-show"
-      ];
-    };
-
-    "/mnt/gaymer" = {
-      device = "/dev/disk/by-label/gaymer";
-      options = [
-        "noatime"
-        "nofail"
-        "users"
-        "exec"
-        "x-gvfs-show"
+  home-manager.users.${config.custom.username} = {
+    # Prevent secondary GPU reset from crashing window manager
+    wayland.windowManager.hyprland.settings = {
+      monitor = [
+        "HDMI-A-1, disable"
+        "HDMI-A-2, disable"
+        "HDMI-A-3, disable"
       ];
     };
   };
-
-  # Set mount directory permissions
-  #?? TYPE PATH MODE USER GROUP AGE ARGUMENT
-  systemd.tmpfiles.rules = [
-    "z /mnt/gayme 0755 myned users"
-    "z /mnt/gaymer 0755 myned users"
-  ];
-
-  # BUG: "manual" profile is the same as "auto" with kernel 6.10
-  # TODO: Remove when Linux 6.12 is released
-  # https://gitlab.freedesktop.org/agd5f/linux/-/commit/ec1aab7816b06c32f42935e34ce3a3040c778afb
-  # Work around performance issues with AMD power scaling
-  # https://wiki.archlinux.org/title/AMDGPU#Screen_artifacts_and_frequency_problem
-  # https://wiki.archlinux.org/title/AMDGPU#Power_profiles
-  #!! cardX must match the correct gpu
-  #?? lspci
-  #?? ls -l /dev/dri/by-path/*-card
-  #?? grep '*' /sys/class/drm/card*/device/pp_power_profile_mode
-  services.udev.extraRules = ''
-    SUBSYSTEM=="drm", KERNEL=="card1", DRIVERS=="amdgpu", ATTR{device/power_dpm_force_performance_level}="manual", ATTR{device/pp_power_profile_mode}="1"
-  '';
-
-  # https://github.com/Zygo/bees
-  # Deduplicate entire filesystem
-  #?? Optimal for ~1TB total disk space
-  # https://github.com/Zygo/bees/blob/master/docs/config.md#hash-table-sizing
-  # services.beesd.filesystems.root = {
-  #   spec = "/";
-  #   verbosity = "err";
-  #   extraOptions = [ "--loadavg-target" "5" ]; # Reduce threads on ~5% total processor load
-  # };
-
-  # Periodically upload current wallpaper to remote server
-  # systemd.user = {
-  #   services."wallpaper" = {
-  #     path = with pkgs; [
-  #       openssh
-  #       rsync
-  #       tailscale
-  #       variety
-  #     ];
-
-  #     #!! Hostname dependent
-  #     script = ''
-  #       rsync --chown caddy:caddy "$(variety --current)" root@myne:/srv/static/wallpaper.png
-  #     '';
-  #   };
-
-  #   timers."wallpaper" = {
-  #     wantedBy = [ "timers.target" ];
-
-  #     timerConfig = {
-  #       OnBootSec = "1m";
-  #       OnUnitActiveSec = "1m";
-  #     };
-  #   };
-  # };
 }

options/custom/desktops/hyprland/settings.nix

@@ -39,7 +39,7 @@ in {
 
       # https://wiki.hyprland.org/Configuring/Monitors
       #?? monitor = NAME, RESOLUTION, POSITION, SCALE
-      monitor = [
+      monitor = mkBefore [
         ", highrr, auto, ${toString config.custom.scale}"
 
         # HACK: Ensure the fallback output has a sane resolution