xf 4.0.0/1 with rage II/rage pro -- should the ati driver work?
Kostas Gewrgiou
gewrgiou at imbc.gr
Tue Sep 26 04:39:34 EST 2000
On Sun, 24 Sep 2000, Geert Uytterhoeven wrote:
>
> On Sun, 24 Sep 2000, Michael Schmitz wrote:
> > > > /* hack */
> > > > pScrn->videoRam = 2048;
> > > > [...]
> > > > The hack to unconditionally set pScrn->videoRam to 2M should be removed,
> > >
> > >
> > > The rsync of atimach64ppc.c I got earlier today doesn't have this
> > > unconditonal assignment hack anymore. The hardwired vram setting
> >
> > It was too obvious to go undetected for long :-). Now if the kernel
> > framebuffer driver (atyfb, and don't check the 'no video driver' option
> > when using BootX) reportds the correct vram size the X server should see
> > the correct size as well.
>
> However, I see a problem. Atyfb reports the video RAM size minus the cursor
> area. If you divide that number of bytes by 1024 to get pScrn->videoRam, you
> end up with 1 MB too few :-(
>
Hmm does this mean that mmapping the framebuffer doesn't give you the
start of vram but vram+offset ? if yes then we have a big problem here.
BTW you'll end up 1KB too few not 1MB, pScrn->videoRam is in KBytes :)
Kostas
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