On Sat, Jul 12, 2008 at 11:16:31PM +0800, Bean wrote: > On Sat, Jul 12, 2008 at 10:41 PM, Robert Millan <[EMAIL PROTECTED]> wrote: > > On Wed, Jul 09, 2008 at 12:31:53AM +0800, Bean wrote: > >> > -- I tried passing video=intelfb to linux; it worked under grub2-pc but > >> > didn't improve anything under efi. > >> > >> intelfb doesn't work. The only way to see console in efi is to use > >> video=vesafb or video=efifb. > > > > How come? I thought intelfb used the bare hardware. > > The video register in efi mode is not setup in the same way as bios. > There are two sets of register. In EFI, set A is completely zero, > while set B have non-zero value. But in bios mode, both set have > non-zero value. I guess this is because bios have text and graphic > mode, while efi only have graphic mode. (text mode in efi is emulated)
But isn't intelfb supposed to access the hardware without any support from bios/vesa or efi? -- Robert Millan <GPLv2> I know my rights; I want my phone call! <DRM> What good is a phone call… if you are unable to speak? (as seen on /.) _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel
