i810 with modesetting in combination with dualscreen/Xinerama?

[Eric Anholt]

On Fri, 2006-10-27 at 21:37 +0200, Andreas Schildbach wrote:
> Hello everyone,
> 
> I'm trying to get the modesetting i810 driver to work on a 
> dualscreen/Xinerama setup. Unfortunately, X doesn't start (log and 
> xorg.conf attached).
> 
> But let me start from the beginning:
> 
> I am using a Dell Latitude X1 notebook with an i915GMS chipset. The 
> internal display has a native resolution of 1280 x 768. My external 
> monitor is a Dell 2405FPW with a native resolution of 1920 x 1200 @ 60 
> Hz, connected by an analog VGA connector. I've installed Ubuntu Edgy 
> final, which comes with X.org 7.1.
> 
> I followed those instructions, which got me a working internal display 
> at native resolution, mirrored to the external display:
> 
> http://ubuntuforums.org/showthread.php?p=1652245
> 
> I continued to experiment, in order to ascend to dualscreen:
> 
> Here is the part of the xorg.conf that I changed from the Ubuntu default 
> (full version attached). Unfortunately, X fails to start: "No modes 
> found on either pipe" (full log attached). Can anyone help me with this 
> problem? I'm particularly suspicious about the device sections. They 
> worked on X.org 7.0 on Ubuntu Dapper and X.org 6.9 on Ubuntu Breezy, but 
> I never understood them fully (I just tried around).

Dualhead display is currently not supported easily on modesetting.  In
the modesetting branch we're diking out traditional multihead and
replacing it with RandR 1.2, which offers more functionality.  It should
be ready soon.

-- 
Eric Anholt                             anholt at FreeBSD.org
eric at anholt.net                         eric.anholt at intel.com
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