Can someone please explain this VGABIOS Error

David Aubin daubin at actuality-systems.com
Thu Jul 15 10:39:01 CEST 2004


Yeah, its works:)

Just to recap for anyone reading this thread after me:dd if=/dev/mem
of=vgabios.bin skip=1536 count=128

1.  Get http://atrey.karlin.mff.cuni.cz/~mj/pciutils.shtml 
2.  Get the freebios2 source
3.  Build the freebios2/util/vgabios
    A.  You may need to modify makefiles to suit your needs I did
        in order to get it to build under a 64 bit machine.  You want 32
bit apps.
4.  Do dd if=/dev/mem of=vgabios.bin skip=1536 count=128 on the card
when it up and running normally
5.  On the target machine, preferably in your initrd
    Put the following line:
    ./testbios -s 65536 -d 0x200 -t --abseg /dev/mem ./vgabios

Thank you for all your help:):):):)

Thanks,
Dave

On Thu, 2004-07-15 at 11:58, Li-Ta Lo wrote:

> On Thu, 2004-07-15 at 08:01, David Aubin wrote:
> > Hello,
> > 
> >   I got the testbios built and tried it and got the following error
> > doing:
> > ./testbios -d 0x200 -t vgabios.bin
> > 
> >   I made my vgabios.bin by doing:
> > dd if=/dev/mem of=vgabios.bin skip=1536 count=128
> > 
> > The error is:
> > c000:00dc 6e                  OUTSB
> >         AX=1cff  BX=ffff  CX=ff00  DX=60ac  SP=fff4  BP=0000  SI=0002 
> > DI=0002
> >         DS=0040  ES=0000  SS=0030  CS=c000  IP=00de   NV UP DI PL NZ
> > NA PE NC
> > c000:00dd f4                  HALT
> > halt_sys: file ops.c, line 9804
> > halted
> >         AX=1cff  BX=ffff  CX=ff00  DX=60ac  SP=fff4  BP=0000  SI=0002 
> > DI=0002
> >         DS=0040  ES=0000  SS=0030  CS=c000  IP=00de   NV UP DI PL NZ
> > NA PE NC
> > c000:00de 6e                  HALT
> > 
> > 
> > Can someone please explain this error to me and how to possibly fix
> > it?
> > 
> 
> It means there was NO ERROR. It ran perfectly. If it is the case, you 
> should see acrambled screen at this point. 
>  
> > I have a Tyan mb with a 2885 chipset.  AMD64 chip.  And an Nvidia FX
> > 5950 video card.
> > Any help would be appreciated:)
> > 
> 
> The correct command line would be:
> 
>    ./testbios -s 65536 -d 0x200 -t --abseg /dev/mem ../nvbios.bin
> 
> BTW, you need recent CVS tree to make it work on s2885.
> 
> Ollie
> 
> > Thank you,
> > Dave
> 
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