[coreboot] Patch set updated for coreboot: 6709bdd Fix multipleVGA cards resource conflict on Windows

ron minnich rminnich at gmail.com
Mon Dec 19 18:02:54 CET 2011

On Sun, Dec 18, 2011 at 10:01 PM, She, Kerry <Kerry.She at amd.com> wrote:
> Hello, Ron
>> I asked:
>> What do Linux or *BSD do in the same situation? Do they handle it cleanly?
> Linux VGA Arbiter module(vgaarb) will handle this explicitly.
> So dual vga card would works together, even coreboot not disable IO& MEM decoding on the second vga card.

OK, then,  my concern about this patch is that you are making a
compile-time decision in  coreboot to fix a problem with one operating
system (Windows) that will impact other operating systems that don't
have the problem.

I wonder if a better way to manage this is via a CMOS (aka NVRAM)
setting. I kind of hate to limit coreboot because Windows is limited.
But I'm a n00b in a sense, having just come back onto this project, so
I'm happy to be told I'm wrong :-)

p.s. For those who don't know me, I've been out of coreboot for 2
years, having been heavily involved from 1999 (when I started
LinuxBIOS) to 2009. Changing circumstances mean I get to work on it
again, which is nice.

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