Michael Tinsay <[EMAIL PROTECTED]> writes:

> Do you want to separate desktop screens, or one a copy of the other?
>
> If the latter, it is simply a matter of pressing the proper fn+f? key.
> Beware, for this I usually switch to a text console (ctrl-alt-f1)
> before pressing these keys, as my laptop hangs when doing the display
> switching while in X.  Pressing the fn+f? keys in rapid succession
> also hangs my unit.  Probably a video driver problem -- mine's an
> intel chipset.

On newer X servers and drivers with RandR 1.2 (this includes Xorg 7.3
and the latest Intel driver starting with 1.3), you can simply run, on a
laptop:

  $ xrandr --output VGA --right-of LVDS --auto

to turn on multihead (with the above implying that the VGA external
output is at the right of the laptop display panel). I'm not sure what
outputs are available on a desktop machine, but you can do

  $ xrandr

to enumerate outputs and their available modes.

To do cloning (i.e. two output with the same displayed desktop):

  $ xrandr --output VGA --same-as LVDS --auto

And, going back to a single head:

  $ xrandr --output VGA --auto

Actually, the following:

  $ xrandr --auto

should do The Right Thing most of the time.


-- 
JM Ibanez
Software Architect
Orange & Bronze Software Labs, Ltd. Co.

[EMAIL PROTECTED]
http://software.orangeandbronze.com/
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