[SeaBIOS] [PATCH 0/2] Implement VBE function 15h

Gerd Hoffmann kraxel at redhat.com
Fri Mar 16 13:22:57 CET 2012


On 03/16/12 13:10, Kevin O'Connor wrote:
> On Fri, Mar 16, 2012 at 10:38:42AM +0100, Gerd Hoffmann wrote:
>>   Hi,
>>
>>> Is it worth trying to support high resolutions in Xorg ? If yes, then
>>> we need to expose a valid EDID block. But what capabilities should the
>>> virtual monitor report ? (I mean max resolution, preferred resolution,
>>> should they be static, provided by configuration options, or
>>> dynamically chosen at run-time).
>>
>> At runtime, read from qemu firmware config interface?
> 
> The bochsvga code seems to already get a maximum resolution and
> maximum depth through the vbi interace.  See the "validate modes"
> section of bochsvga.c:bochsvga_init().

Yea, it checks whenever the modes fit into the amout of memory available.

I was thinking more along the lines of having
etc/vga-prefered-{xres,yres} fw_cfg files, then generate a EDID block
with them so xorg can pick them up and use as default resolution?

cheers,
  Gerd




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