Hi all,
After some search on internet and on the coreboot wiki and forum, I decided to
buy the E350m1 Asrock motherboard that seems to be full supported from coreboot
community.
But I'd like to modify the bios and/or the vgabios to use with an old CGA/EGA
monitors that work with an HSYNC at (about) 15kHz despite the VGA at 31kHz.
I found some interesting project on internet (1 free and 1 commercial), i.e. :
http://tinyurl.com/r6n4l
where the author has modified the Award 4.51pg bios to replace the vga table
written by the video card in RAM with a modified version (different vgatable
timings).
Or i.e. this commercial project:
http://tinyurl.com/mgcqnar
where the author has modified the ati bios to force the card to work at other
horizontal frequencies.
I'd like to ask you if it is possible to do with coreboot the first example
above.
Somebody can advise me where to start?
Now, I'm following the second example above in fact, I started to disassembly
the AsRock E350m1 video bios (pci10029802.rom) and I identified the asm code
part where the resolutions are set; but at the moment I was not able to find
the vga table inside the hex in order to change the timing.
Some help? :)
Thank you very much
Bye
--
coreboot mailing list: [email protected]
http://www.coreboot.org/mailman/listinfo/coreboot
