Shutdown montitor via ssh

[Moire]

Am 09.12.2005 um 16:13 schrieb Andy Pieters:
>
> I was trying to execute the
>
> xset dpms force off
>
> command via ssh on a remote machine but it keeps saying
>
> xset: unable to open display ""

Hi Andy, so far normal behavior.

> When I am physically on that machine, doing the same command results 
> in the
> montitor shutting off.
>
> I tried ssh -X, and ssh -x, tried DISPLAY=:0.0 xset but none of it 
> works.

You dont want to forward to your local X session. Dont do that ;)

>
> Anyone has a clue?

set up your environment

# export DISPLAY=:0

- If your X server is up,
- and no one is logged in.

Which display mananger is running (gdm, xdm ,kdm) ?


You need access to the X session cookie.

Keyword: MIT-MAGIC-COOKIE-1, XDM-AUTHORIZATION-1

Read man Xsecurity and man xauth

It should be in your .Xauthority file ...

Coping as root is enough.

something like

# cp /etc/X11/xdm/......MIT-MAGIC-COOKIE-1 $HOME/.Xauthority

Its to long ago to be exact. Just look into man pages.

Good luck.

Moire