[directfb-dev] Re: [PATCH] G450/G550 detection for CRTC2

[Ville Syrjälä <syrjala@sci.fi>]

On Fri, Dec 27, 2002 at 05:06:25AM +0100, Denis Oliver Kropp wrote:
> A problem is that XDirectFB currently has to lock the window surfaces
> for the software fallbacks of the X Server permanantly.

So they stay locked even if the windows aren't visible?

I haven't looked at XDirectFB sources. How much acceleration does it use
and how much is done via sw fallbacks?

> I'm running XDirectFB in 1280x1024 @32 bit. I tested the TV-Out code on a G550
> and it's working well, great work!

Excellent.

> An interesting work would be to use command buffers via AGP with an interrupt
> for the card getting idle.

That would be nice. I've been thinking about converting the driver to use
pseudo DMA but never got around to it. It could be a simple enough first
step towards real DMA.

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


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