[pm2fb] update 990110 - first public release ;)

[Geert Uytterhoeven]

On Wed, 20 Jan 1999, Sven LUTHER wrote:
> > > > Yes. The X server must not do video mode initialization, but call the frame
> > > > buffer device instead.
> > > 
> > > what then is the stuff you initialize in the mach64 accel init stuff ?
> > 
> > Like you say, that's _accel_ _engine_ init stuff, not _graphics_ _engine_ init
> > stuff. The graphics engine takes care of the video mode (programmed in the
> > fbdev in the kernel), while the X server has to program the accel engine.
> 
> in the case of the permedia 2, the engine is only one long pipeline, so the graphic and
> accel engine are the same ?

Are you sure about that?

> but better would be to take another approach to my questions, ...
> 
> when are the init and renint function called ?
> 
> i guess init is the first time the Xserver is launched, and reinit is each time 
> you return from some console switch ?

Right.

> should we save the previous state and reset it on exiting X or something like that ?
> Or will the fbdev driver automatically reinitialize the pm2 when you switch back to console mode ?

The X server may restore the video mode by calling the FBIOPUT_VSCREENINFO
ioctl with the `var' it got on startup.

Greetings,

						Geert

--
Geert Uytterhoeven                     Geert.Uytterhoeven at cs.kuleuven.ac.be
Wavelets, Linux/{m68k~Amiga,PPC~CHRP}  http://www.cs.kuleuven.ac.be/~geert/
Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium


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