Bug#455225: /usr/bin/xrandr: please consider possibility to disable hardware detection

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Marc Haber wrote:
> > You should be able to call xrandr only twice here. One to get the output
> > and save it (and apply sed multiple times to compute OUTPUTLIST), and
> > one to pass --auto for all outputs and set their position.
> >     
>
> How would that call look like?
>
> xrandr --output VGA-0 --auto --left-of LVDS --output LVDS --auto?
>   

Yes you can probably do something like that. At least, I know that
   xrandr --output LVDS --off --output TMDS-1 --rotate left --auto
does what I want on Intel (disable LVDS and set TMDS to preferred mode 
rotated to left)

Also, --auto seems to work with and without a --output specified 
earlier. So you should be able to do
   xrandr --auto --output VGA-0 --left-of LVDS

> If so, this possibility should be mentioned in the manual page.
>   

Right, it is not really explicitly explained in the manpage, I'll try to 
improve it.

Brice