Make backlight work

packages.yml

@@ -145,7 +145,7 @@ packages:
     black:
       archlinux: ["python-black"]
     xbacklight:
-      archlinux: ["xorg-xbacklight"]
+      archlinux: ["acpilight"]
     wireshark:
       archlinux: ["wireshark-cli", "wireshark-qt"]
     nmap:

playbook.yml

@@ -661,6 +661,21 @@
           state: absent
         become: true
 
+    - name: backlight configuration
+      tags:
+        - backlight
+      block:
+        # See https://wiki.archlinux.org/title/backlight#ACPI
+        - name: create udev rule to allow video group backlight access
+          copy:
+            dest: /etc/udev/rules.d/backlight.rules
+            owner: root
+            group: root
+            mode: '0644'
+            content: |
+              ACTION=="add", SUBSYSTEM=="backlight", RUN+="/bin/chgrp video $sys$devpath/brightness", RUN+="/bin/chmod g+w $sys$devpath/brightness"
+          become: true
+
     - include_tasks: user.yml
       args:
         apply:

user.yml

@@ -8,6 +8,7 @@
       - sudonopw
       - games
       - kvm
+      - video
 
 - name: create user group
   group: