Re: [PATCH] x86_32: trim memory by updating e820 v3

From: Yinghai Lu
Date: Mon Apr 28 2008 - 15:08:23 EST


On Mon, Apr 28, 2008 at 7:24 AM, Gabriel C <nix.or.die@xxxxxxxxxxxxxx> wrote:
> Mika Fischer wrote:
> > Hi Ingo,
> >
> > I'm having the same problem.
> >
> > Ingo Molnar schrieb:
> >> excellent. So just to make sure: this box never had proper graphics
> >> under Linux (under no previous kernel), due to the way the BIOS has set
> >> up the MTRR's, right?
> >
> > Well, not quite. X still works fine, but since the video memory is
> > overlapped by two of the existing MTRRs, X cannot add a write-combining
> > range for the video memory. That makes X rather slow especially if you
> > use DRI for Compiz etc.
>
> Well you are lucky then :)
>
> Yeah X 'worked' but it worked as slow as with vesa video driver here.
>
> Also starting something like supertuxkart made it crash or I got a black screen :(
>
> The only game I managed to start ( without X to crash ) without that patch was supertux but is was slow as hell.
> However I'm not a gamer but I need X to work right.
>
or can you change graphics card memory in BIOS to some big like 256M
instead of 64M?

YH
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