[arch-general] Weird acpid issue

[Leonid Grinberg]

> xset needs to connect to the X server, so it needs both for the
> DISPLAY to be specified and also to have access to the XAuthority
> cookie for the X server. Otherwise it will not work - can't connect to
> the X server.
>
> Since acpid runs as a sytem service it ussually doesn't have access to
> that information.

Hmm, so, so far, everything seems to be working fine... One can play
"DISPLAY=:0" before "xset dpms force off", but how does one grant it
access to the XAuthority cookie?