RFC: vesafb

hollis at austin.ibm.com hollis at austin.ibm.com
Fri Jan 25 09:17:36 EST 2002

On Thu, Jan 24, 2002 at 05:42:46AM +0100, Michel Lanners wrote:
> On  23 Jan, this message from hollis at austin.ibm.com echoed through cyberspace:
> > The attached patch allows vesafb to work on PPC. vesafb does surprisingly
> > little with the BIOS (which I thought was the whole point of VESA). With
> > some ifdef's I'm able to use it as sort of a VGA offb -- the firmware
> > initializes the card, and the driver just uses it and never mucks with it.
> Wouldn't this be a good start to use generic PC-type grafic cards on PPC
> machines in general? Or do you lack initialization if nobody (neither
> firmware nor OS) can talk to the card 'natively'?

Yes, we would lack initialization on Power Mac (for example). PReP firmware
does proper setup for a very limited range of chips, which is why this is
useful at all.


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