Improve / fix screen lock and brightness buttons

modules/home/i3/default.nix

@@ -45,6 +45,10 @@ in
       xfce.xfce4-screenshooter
     ];
     xsession.enable = true; # Give gui programs access to sessionVariables
+    # Prevent screen from going blank
+    xsession.initExtra = ''
+      ${pkgs.xorg.xset}/bin/xset s off
+    '';
     xsession.windowManager.i3 = {
       enable = true;
       package = pkgs.i3-gaps;

modules/home/i3/i3/config

@@ -11,11 +11,11 @@ font pango:FuraCode Nerd Font 12
 
 # xss-lock grabs a logind suspend inhibit lock and will use $lock to lock the
 # screen before suspend. Use loginctl lock-session to lock your screen.
-exec --no-startup-id xss-lock --transfer-sleep-lock -- $lock --nofork
+# exec --no-startup-id xss-lock --transfer-sleep-lock -- $lock --nofork
 
 # Screen brightness controls
-# bindsym XF86MonBrightnessUp exec "xbacklight -inc 10; notify-send 'brightness up'"
-# bindsym XF86MonBrightnessDown exec "xbacklight -dec 10; notify-send 'brightness down'"
+bindsym XF86MonBrightnessUp exec "brightnessctl set 5%+"
+bindsym XF86MonBrightnessDown exec "brightnessctl set 5%-"
 
 # Use pactl to adjust volume in PulseAudio.
 # set $refresh_i3status killall -SIGUSR1 i3status

systems/x86_64-linux/aspi/default.nix

@@ -118,6 +118,21 @@
   services.xserver.windowManager.i3.package = pkgs.i3-gaps;
 
   services.blueman.enable = true;
+  services.upower.enable = true;
+
+  # TODO: move into i3 module
+  programs.xss-lock = {
+    # responds to "loginctl lock-session" via dbus
+    enable = true;
+    lockerCommand = "${pkgs.i3lock}/bin/i3lock --ignore-empty-password --color=000000";
+  };
+  # services.xserver.xautolock = { # TODO: does not work
+  #   enable = true;
+  #   time = 1;
+  # };
+  programs.dconf.enable = true;
+  services.logind.lidSwitch = "lock";
+  services.logind.lidSwitchDocked = "lock";
 
   programs.kdeconnect.enable = true;
 
@@ -263,6 +278,8 @@
     frajul.pulseaudio-popup
     gparted-xhost # needs to be installed as system package so it can be actually opened
     xclip
+
+    brightnessctl
   ];
 
   virtualisation.docker.enable = true;