Re: [coreboot] Error executing VGA ROM with coreboot

[Joseph Smith]

On Fri, 30 Oct 2009 10:11:36 +0530, "Mansoor" 
wrote:
> > -----Original Message-----
> > From: Joe [mailto:[e-mail]]
> > Sent: Thursday, October 29, 2009 7:32 PM
> > To: Mansoor
> > Cc: 'coreboot'
> > Subject: Re: [coreboot] Error executing VGA ROM with coreboot
> >
> > On 10/29/2009 07:38 AM, Mansoor wrote:
> > > Hi
> > >
> > > I keep getting "ILLEGAL EXTENDED X86 OPCODE!" from my VGA ROM while
> > > trying run VGA ROM in coreboot.
> > >
> > > I tried x86emu, yabel and real mode for running VGA ROM with no luck.
> > > But the same VGA ROM is running with seabios.
> > >
> > > I am attaching the boot logs with x86emu, real mode and with seabios.
> > >
> > > Any help?
> > >
> > > What is the big difference while executing VGA ROM in coreboot and
> >
> > seabios?
> > > Why coreboot can't run a VGA ROM which seabios can?
> >
> > Hmm looks like your getting Unexpected Exception errors. Something is
> > not initializing correctly. Memory maybe?
>
> I don't think so, because with seabios I am able to load Linux in GUI

mode.
> Only with coreboot I am facing these issues for initializing VGA ROM.

You could always try Debugging the Unexpected Exception errors with GDB,
this may give you a clue on what the problem is.

http://www.coreboot.org/Debugging