David Dawes wrote:
> 
> On Thu, Jun 26, 2003 at 09:35:52AM -0500, Oliver Wong wrote:
> >Hello all,
> >
> >I recently purchased a Dell D400, which suffers from a BIOS only
> >allocating <1MB of legacy video memory (stolen memory) to the integrated
> >graphics... I believe the Dell 500m and other 855GM laptops suffer from
> >this as well. The BIOS also does not provide the appropriate mechanisms
> >for the current drivers to change that.
> >
> >Researching, I found that the Dell C400 and other similar laptops had
> >this problem too (with an older chipset), but a work around was written
> >(by Abraham vd Merwe?).  Does anyone know if a similar work around could
> >be applied to the 855GM's? Or is the chipset radically different so that
> >that fix will not work?
> 
> That method didn't work on the test hardware I had access to when
> adding the 855GM support.  The driver does implement a new method
> for informing the video BIOS about additional memory allocations,
> but I haven't seen any evidence of production hardware implementing
> it yet.
> 
> You could try the attached patch, which should enable the old 830M
> method for all platforms, and let me know if it works.  It's possible
> that Dell has the old method implemented in their video BIOS.
> 
> If it doesn't work, you'll need to follow it up with Dell.

Alright, thanks David.  I haven't gotten my D400 in yet, but it should
be arriving soon (expected delivery is tomorrow).  Does anyone else have
a D400 out there that could give this a try? Since I won't even have a
linux distro on mine for a little while.

-Oliver

> 
> David
> --
> David Dawes
> Founder/committer/developer                     The XFree86 Project
> www.XFree86.org/~dawes
> 
>   ------------------------------------------------------------------------
> 
>    biosmem.diffName: biosmem.diff
>                Type: Plain Text (text/plain)
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