HDMI auto audio switch for XFCE on Endevour OS using Udev rule

Because when you connect HDMI cable you want to be able to use HDMI speakers.

When you disconnect HDMI you want to go back to laptop speakers.

But sometimes it is broken.

This is why udev rule and sh script. Make sure to update your username and paths in sh script and udev rule

Requierements:

paru -S at
systemctl enable atd.service --now

because when udev rule is running, it will not update pactl info, so we need to schedule delayed task in background.

Stuff:

https://srobb.net/pipewire.html - does not work when sink has always same number and requieres X restart https://gitlab.freedesktop.org/pipewire/wireplumber/-/issues/629 - with inspiration from @fefo1993 for this rule https://wiki.archlinux.org/title/Udev#Execute_when_HDMI_cable_is_plugged_in_or_unplugged - good resource, but was not working