Re: Dell D600: teaching radeonfb how to wake up...

[Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>]

On Tue, 2003-11-25 at 04:36, Pavel Machek wrote:
> Hi!
> 
> > In the meantime, if we can (not sure about it) call back into the BIOS
> > when waking up (Andi seemed to imply we are in real mode when getting
> > out of sleep), we may just use int10 to hard re-POST video cards at this
> > point. We must also make sure we do that for the AGP bridge if
> > possible.
> 
> Look at arch/i386/kernel/acpi/wakeup.S code. It attempts to do
> real-mode reinitialization (if you pass right acpi_sleep= paramater),
> but it only works for some people.
> 
> If it is possible to improve that real-mode code to work more people,
> feel free to send patches.
> 
> [I now have another machine -- arima notebook -- where none of current
> methods works. I'll need to look at it closely.]

Well, I did a quick look only, I'm a bit dumb with x86 assembly, but
it looks you are only trying to call VESA for setting a mode, not
doing a full POST of the card

Ben.




-------------------------------------------------------
This SF.net email is sponsored by: SF.net Giveback Program.
Does SourceForge.net help you be more productive?  Does it
help you create better code?  SHARE THE LOVE, and help us help
YOU!  Click Here: http://sourceforge.net/donate/