Re: [PATCH] fix widescreen resolution issues

Arne Brutschy
2008-02-21T10:29:03Z

Hi,

On Mi, 2008-02-20 at 22:16 +0100, Andreas Winkelbauer wrote:
> the attached patch fixes the issues with widescreen resolutions for me
> when using -std-vga.
> I would appreciate any suggestions, comments and of course testing.
Thanks for the patch, Andreas! You found the "magic limitation" to
1600x1200...

> @Arne Brutschy: could you please test the 1920x1200 resolution with your
> setup?
I did, it does not work. :( I can select the video mode, but upon
activation qemu crashes. I think the video memory overwrites system
memory because qemu does not allocate the increased vmem properly. So
every mode under 8MB of video ram does work, all others do not.

1680x1050x32 => works (7056000 bytes)
1920x1200x24 => works (6912000 bytes)
1920x1200x32 => crashes (9216000 bytes)

I haven't found the piece of code that's responsible for vmem allocation
yet. Does somebody know where this is done? Is there somebody from qemu
reading this?

Arne