Re: [Linux-fbdev-devel] Another problem, seemingly coming f

[<sy...@sc...>]

On Wed, Oct 16, 2002 at 09:00:27AM +0200, Petr Vandrovec wrote:
> Ah, these ones... What pixclocks do you use? It is like if CRTC2 has
> not enough memory bandwidth available, and so it displays stale data.

Can the CRTC high priority stuff affect this? Does matroxfb touch the
priority registers?

> Only problem I can think of is that system VCO frequency is always set
> to 133333 kHz (for G100/200/400) in matroxfb_DAC1064.c. Your PINS
> suggest that 200MHz are correct system clocks for your chip.

What do you think about making matroxfb do clock setup accrding to PINS?
XFree86 mga driver does it own clock setup but DirectFB matrox driver
does not. I'm pretty sure increasing the clocks would provide some
speed benefits since the BIOS default clocks are pretty low.

-- 
Ville Syrjälä
sy...@sc...
http://www.sci.fi/~syrjala/