On Sun, Jul 26, 2009 at 02:21:34PM -0400, Kevin O'Connor wrote: > On Thu, Jul 23, 2009 at 02:20:53PM +0200, Luc Verhaegen wrote: > > Add initialisation for the VIA Chrome 9 IGP on the k8m890 through native > > code > > and through the general vga infrastructure i committed a month or two ago. > > Add videoram_size option for k8m890 and the Asus M2V-MX SE. > > > > Now the Asus M2V-MX SE will magically come up with a working standard VGA > > 80x25 textmode. > > Hi Luc, > > With your code, will the SeaBIOS vgabios (make out/vgabios.bin) run on > the board? > > -Kevin
No; a general VGA bios is a broken concept to begin with. What you should know is that VGA is _not_ a standard, and one should never, ever try to change the mode without more detailed hw knowledge. It is only a standard through the int10 and vbe interfaces, where the manufacturers vga bios does all the vga and hw specific stuff for you. What such a general bios should do is find out, one way or another, what mode has been set and how to stuff things into the framebuffer. In this case: mode 3h: 80x25 with 8x16 fonts, with the framebuffer living at 0xB8000 and with vga standard cursor and fb offset handling. So a general int10 bios should find this out and then claim to only support this and absolutely nothing else. Everything else requires a whole bunch of hw specific code, and while you could spend the rest of your days porting graphics drivers from fb or X to this code, i think there are much better ways to spend ones time. Luc Verhaegen. -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
