I've bought a shiny new htpc that I was hoping would just work with
Linux.

Sadly it doesn't.

Before I post a long and rambling diatribe, does anyone know how to
run xrandr remotely (since I just get a blank screen on the hdtv)?

I tried over tunnelled ssh and just got the local (my laptop's) X server's 
settings,
and then tried using the -display flag like so:


# /etc/init.d/xdm start
* Setting up gdm ...
* Detaching to start `/usr/bin/gdm' ... # xrandr -display :0
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

Can't open display :0


I'm guessing this requires me to somehow open access to the X server.

I set 'DisallowTCP=false' in /etc/X11/gdm/custom.conf in the [security] section 
and restarted gdm but that didn't seem to do anything.

What else can I try to get xrandr to let me change the resolution for a xserver 
that can't be seen?

Thanks.

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