dumpyourvms: linux 6.4 remembers screen brightness

Using acpi_video0 for changing the brightness with keyboard hotkeys

hosts/dumpyourvms/.config/sway/config.d/input-defaults.conf

@@ -18,8 +18,8 @@ input "type:touchpad" {
 #bindsym XF86TouchpadToggle exec $HOME/Workspace/ben/toggletouchpad.sh # toggle touchpad
 
 # Screen brightness controls
-bindsym XF86MonBrightnessUp exec "brightnessctl -d gmux_backlight set +10%"
-bindsym XF86MonBrightnessDown exec "brightnessctl -d gmux_backlight set 10%-"
+bindsym XF86MonBrightnessUp exec "brightnessctl -d acpi_video0 set +10%"
+bindsym XF86MonBrightnessDown exec "brightnessctl -d acpi_video0 set 10%-"
 
 # Keyboard backlight brightness controls
 bindsym XF86KbdBrightnessDown exec "brightnessctl -d smc::kbd_backlight set 10%-"

modules/sway/swayidle.service.nix

@@ -16,7 +16,6 @@
     ExecStart =
       ''        ${pkgs.swayidle}/bin/swayidle -w \
                 after-resume 'swaymsg "output * dpms on"' \
-                after-resume '${pkgs.brightnessctl}/bin/brightnessctl -d gmux_backlight set 60%' \
                 before-sleep 'swaylock-bg' ''
       + (
         if psCfg.paranoia.enable

profiles/base-user/.config/waybar/config

@@ -62,7 +62,7 @@
       }
   },
   "backlight": {
-      "device": "gmux_backlight",
+      "device": "acpi_video0",
       "format": "<span font='10'> {percent}%</span> {icon}",
       "format-icons": ["", ""]
   },