[SeaBIOS] Re: [PATCH] vga: fix cirrus bios

[Gerd Hoffmann]

On Thu, Jun 25, 2020 at 12:23:22PM +0200, Paul Menzel wrote:
> Dear Gerd,
>
> Am 25.06.20 um 11:17 schrieb Gerd Hoffmann:
> > Little mistake, big effect.  The patch adding the ati driver broke
> > cirrus due to a missing "else", which effectively downgrades cirrus
> > to standard vga.
>
> What is an easy test with QEMU to figure out, that only standard vga is
> used?

Boot some windows 10 install iso.  If it comes up with 640x480 in
grayscale you have a broken cirrus bios.

take care,
  Gerd