Re: fb with S3 Verge
Brian Gerst (bgerst@quark.vpplus.com)
Fri, 12 Feb 1999 09:13:04 -0500
Keith Duthie wrote:
>
> On Fri, 12 Feb 1999, Brian Gerst wrote:
>
> > That depends on the BIOS more than the chipset. When I had a Virge, I
> > had to load a DOS TSR to get VBE2.0 compatability. This could work with
> > Linux as well, using loadlin. The only thing that doesn't work is the
> > limited protected mode functionality of VBE2.0, since the TSR is
> > overwritten after bootup.
> Not exactly a real solution. Perhaps something should be done to give
> pseudo-VBE2.0 functionality to VBE1.2 boards on boot. ie something to muck
> about with the video card before the kernel loads. OTOH, this would
> probably not be a kernel-space issue. (IOW, it could be done either as a
> separate utility, or as an add-on to lilo).
The problem with that IIRC is that VBE1.2 doesn't support linear
framebuffers, only banked modes. This means real-mode BIOS calls to
switch banks.
--
Brian Gerst
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