Intel 915GM dual screen (1280x1024 and 1024x768)

[Simos Xenitellis]

On Thu, Nov 6, 2008 at 2:28 PM, Valent Turkovic
<valent.turkovic at gmail.com> wrote:
> On Thu, Nov 6, 2008 at 3:15 PM, Kiniou <kiniou at gmail.com> wrote:
>> Hi,
>>
>> 2008/11/6 Valent Turkovic <valent.turkovic at gmail.com>
>>>
>>> $ xrandr --output VGA --auto --right-of LVDS
>>> xrandr: screen cannot be larger than 2048x1024 (desired size 2304x1024)
>>
>>
>> The maximum virtual screen can be configured in the Display SubSections of a
>> Screen Section  in xorg.conf like this :
>> Section "Screen"
>>   Identifier "Screen1"
>>   Device "Device1"
>>   Monitor "Monitor1"
>>   DefaultDepth "24"
>> ...
>>   SubSection "Display"
>>      Depth 8
>>      Virtual 1600 1600   <-- here you can change the value to fit to your
>> needs
>>   EndSubSection
>> ...
>> EndSection
>>
>> ---
>> Kevin "kiniou" ROY
>
>
> I just need the confirmation that all intel video chips (including
> 915gm) support virtual screen size of 2304x1024.

It has been mentioned a few times that there is this limitation
(hardware or software?) for 2048x2048, when you want 3D enabled as
well.
In lieu of a better answer, you can simply align the two screens
vertically, thus they would fit in a 2048x2048 box.  See the --below
and --above for xrandr.

Simos