[Linux-fbdev-devel] Extending vesafb for modes switching ?

[<GUt...@fr...>]

Ok, this may be a silly question. I am not a kernel/fbdev hacker, so I=20
may ignore some relevant issues. But after many researches, I can't see=20
why it would be impossible for the vesafb driver to handle modes switchin=
g.

According to my understanding of this stuff, vesafb mode setting is=20
possible only during real mode, via a boot argument,  set by bios=20
interrupts, which prevent from changing it later (if I said something=20
wrong, please correct me.) But what about the xfree86 driver ? It seems=20
to do its job via the VBE bios of the card. What would prevent vesafb=20
from doing the same ? I know vesafb only supports VBE 2.0, not 3.0. I=20
couldn't find the VBE 2.0 documentation, but in VBE 3.0 one, protected=20
mode is supported.

I would see this as a great improvement, because of the really little=20
number of cards actually supported by vesafb.

Regards,

Ga=EBl D.