VGA Problem about 440bx chipset

[Adam Sulmicki]

perhaps it would make sense to summarize "lessons learned" and send them
to list, so that whoever will play with ADLO next can benefit from the
knowledge

Just put in all right keywords so that it is easie to find it later on,
like ADLO, S3, etc. The shadow patch probably isn't big either.



On Sun, 5 Sep 2004, Chiu Gerald wrote:

> right.
>
> linuxbios+ADLO+Bochs
>
> >From: Adam Sulmicki <adam at cfar.umd.edu>
> >To: Chiu Gerald <snow2moutain at hotmail.com>
> >CC: rsmith at bitworks.com, <linuxbios at clustermatic.org>
> >Subject: Re: VGA Problem about 440bx chipset
> >Date: Sat, 4 Sep 2004 10:54:45 -0400 (EDT)
> >
> >
> >is this with ADLO?
> >
> >neat!
> >
> >On Sat, 4 Sep 2004, Chiu Gerald wrote:
> >
> > > Wow! I got it!
> > > I use another S3 video card,and succeeded in bringing up the VGA,and
> booted
> > > RedHat linux.
> > > So wonderful linuxbios is!
> > > Richard Smith,thanks for your help very very much!
> > >
> > >
> > >
> > > >From: Richard Smith <rsmith at bitworks.com>
> > > >To: LinuxBIOS <linuxbios at clustermatic.org>
> > > >Subject: Re: VGA Problem about 440bx chipset
> > > >Date: Wed, 01 Sep 2004 10:04:52 -0500
> > > >
> > > >Chiu Gerald wrote:
> > > >
> > > >>you mean that PCI card works?
> > > >
> > > >Yes some PCI cards work.  I've made several Assiliant 65550 and
> > > >69000
> > > >based PCI cards work and some S3 based cards work.  There are
> > > >reports of
> > > >some ATI cards working but I am still having problems getting my ATI
> > > >M1
> > > >based card to work.
> > > >
> > > >>Now I changed to a PCI video card,and bochs had run the vga
> > > >>bios,but still nothing happened!
> > > >
> > > >>I have no idea what should I do next.
> > > >
> > > >Are you setting up the shadowing correctly?  You have to setup the
> > > >shadowing in loader.s or bochs and the video bios never make it into
> > > >ram.  The stock ADLO setup won't work on the 440bx.
> > > >
> > > >I've attached my loader.s which sets up the shadowing correctly.
> > > >
> > > >Also the DEBUG_SERIAL option in rombios.c is very useful.  You can
> > > >enable it and all the bochs bios messages will be redirected out the
> > > >serial port.  This way you can see if bochs rombios is even getting
> > > >called.  You have to turn it back off to get text on the VGA screen.
> > > >But your cards VSYNC should happen regardless. (assuming the vbios
> > > >runs
> > > >correctly)
> > > >
> > > >I leave in a few hours and won't be back till Tuesday the 2nd so you
> > > >are
> > > >on your own for a few days.  I'll try to check email during that
> > > >time
> > > >but I'm not promising anything.
> > > >
> > > >Search the mailing list for things like "ADLO", "vgabios", etc there
> > > >are
> > > >several threads on getting this up.
> > >
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