Xvnc with RENDER - almost working

[Peter Åstrand]

On Wed, 9 Mar 2005, Thomas Winischhofer wrote:

> | My :0 display is a Matrox MGA G400 AGP, but the problem exists when
> | using Xvnc as well, with the "fb" framebuffer.
>
>
> I remember, a while back (before XFree86 4.4 came out) the mga driver
> was buggy in render acceleration. But I thought that was fixed a long
> time ago.

Yes, I don't think it has anything to do with the mga driver.


> What do you mean be "fb"? Maybe "fbdev" (the driver)?

The fb layer (xc/programs/Xserver/fb). Old Xvnc versions (and still 
RealVNC, I think) uses cfb/mfb. See 
http://www.realvnc.com/pipermail/vnc-list/2004-August/046586.html. As far 
as I understand, using RENDER with cfb is hard.


> If so, the problem must be somewhere in the generic RENDER 
> implementation, not the driver-side acceleration (which isn't being used 
> if running the fbdev driver).

Well, when using vnc.so, my MGA graphics card displays the menus 
correctly. The same goes for "xwd -root".


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