Dual Head using Intel driver

Alan Hourihane alanh at fairlite.demon.co.uk
Wed Jun 18 00:34:05 PDT 2008

On Wed, 2008-06-18 at 10:08 +0530, Rudradev AC wrote:
> Hi Alan / Simos,
> Sorry to bother you again, please help me.
> The Xorg release I am using is X11R 7.1, and I am bound to that.
> Please let me know using RandR version 1.1 and Intel driver can we
> achieve extended desktop. I tried, but RandR version 1.1 does not have
> output option. Sorry, I am restricted to RandR version 1.1, I am not
> allowed to upgrade RandR package.

It won't work. The "intel" driver needs X11R7.3 or later because of the
reliance on XRandR 1.2.

> Also as i810 driver worked with xinerama option, in the same way can
> Intel driver support extended desktop. I don't think so, but want to
> confirm.

That's exactly what happens and how it works. The i810 driver uses
Xinerama for extended desktop, whereas XRandR 1.2 no longer requires
Xinerama to achieve extended desktop.

> I am trying for extended desktop with the same xorg.conf file which
> worked with i810 driver, just by changing the Driver field from i810 to
> intel(with xinerama option). 

You can't just change the driver - again it won't work. The "intel"
driver expects X11R7.3.

> Still trying with few modification in xorg.conf hoping for extended
> desktop to work using X11R 7.1 release packages.

For X11R7.1 uses i810 and Xinerama - plain and simple.


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