Maximum Screen Size for intel driver

[Paul Menzel]

Dear Greg,


Am Samstag, den 20.12.2008, 20:38 +0000 schrieb Greg Stark:
> 
> 
> On Sat, Dec 20, 2008 at 6:58 PM, Greg Stark <gsstark at mit.edu> wrote:
>         I'm running into this intel driver limit on a i945GM card:
>         
>         xrandr: screen cannot be larger than 1280x1824 (desired size
>         1920x1824)
>         
>         I've recompiled from source from
>         git://anongit.freedesktop.org/git/xorg/driver/xf86-video-intel
>         but it seems at
>         least the master branch still has this problem. Are there
>         plans to work around
>         this problem? Is there a branch containing fixes for it?
>         
>         I know it's possible because in Windows this card happily
>         drives this monitor
>         at 1920x1200 for a total desktop size of 3200x1200.
> 
> 
> I'm not sure if this is related but I see the following code in
> i830_driver.c:
> 
>     /* See i830_exa.c comments for why we limit the framebuffer size
> like this.
>      */
>     if (IS_I965G(pI830)) {
>     max_width = 8192;
>     max_height = 8192;
>     } else {
>     max_width = 2048;
>     max_height = 2048;
>     }
>     xf86CrtcSetSizeRange (pScrn, 320, 200, max_width, max_height);
> 
> There is no such related comments in i830_exa.c as the comment here
> claims. (In fact there are hardly any comments in i830_exa.c at all).
> Is this code just obsolete? What will happen if I just put a more
> reasonable set of values here?

I heard, there are some technical limitations to it in the
implementation.

I think [1] is the way to go. (Look for Virtual.)


Thanks,

Paul


[1] http://wiki.debian.org/DebianEeePC/HowTo/Configure#head-5002c433e6ebf8a0a8fae6ae545cc32789bdae3f
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 197 bytes
Desc: Dies ist ein digital signierter Nachrichtenteil
URL: <http://lists.x.org/archives/xorg/attachments/20081220/3f4eb393/attachment.pgp>