Make the r128 driver work without fbdev

[Alex Deucher]

On Fri, 17 Dec 2004 08:28:49 +0100, Benjamin Herrenschmidt
<benh at kernel.crashing.org> wrote:
> On Thu, 2004-12-16 at 17:07 -0500, Alex Deucher wrote:
> 
> > but if you are using CRT only, the FP should be turned off.  I thought
> > you were saying you got garbage drawn on the LCD when you set the
> > display to CRT only.
> 
> I suspect that when he uses CRT only, the panel blooms (lack of signal)
> and isn't shut down properly.... The actual LVDS interface shutdown
> mecanism is a bit weird, on some chips, it requires specific timings.

yup.  that's what I was figuring.

> 
> > I doubt s-video will work.  There's no code to handle it.  it may if
> > the bios/firmware has set it up to be on by default.
> 
> It usually doesn't on PPC.... If the video cell of the M3 is the same as
> the one on Radeon M6/7/9, then there is chance we get that working one
> day, the open-beos driver does have code for it that we can re-use (I
> asked the author).
> 

cool.  let's hope it's similar to radeon tv-out.

Alex

> Ben.
> 
>