intel driver and dual screen

[Alberto Milone]

On Wed, 2008-01-16 at 18:47 +0100, Alberto Milone wrote:
> 
> The only reason why I would like to make my application run as root is
> that, as you might already know, sometimes a line such as the following
> has to be appended to the "Screen" section of the xorg.conf:
> 
> Virtual 2880 1600
> 
> It depends on the graphic card but for example if I wanted to set up
> multiple screens (like xinerama used to do) so as to have my 1600x1200
> screen to the left of my laptop's monitor (1280x800) I couldn't do it
> without setting the virtual resolution in my xorg.conf and restarting
> the Xserver, otherwise xrandr would say that the screen cannot be larger
> than 1600x1600. URandR should add that line automatically.
> 
> Of course if you have a better idea I would be glad if you could let me
> know.
> 
> P.S. I have an Intel card and, as far as I know, the Intel driver cannot
> reallocate the frame buffer, therefore whatever size you start with is
> the maximum the screen can ever become.
> 
> Alberto
> 
and another reason why I want URandR to run as root is driver detection
with this command (at least in Debian/Ubuntu):
cat /proc/`pidof X`/smaps | grep _drv.so

as I need to see if either the Intel (modesetting) or the ati driver are
loaded.

Alberto