[linux-dvb] Imageproblem with kvdr

[Marcus O.C. Metzler <mocm@convergence.de>]

Emil Naepflein writes:
 > Hi,
 > 
 > when I run kvdr and the image is large on the screen, it is not very
 > good. It shows kind of short horizontal lines in areas that are moving. 
 > It looks like kind of performance problem of the DVB card writing into
 > display memory.

I bet you have a board with VIA chipset. Those seem to have problems
with the DMA into video or capture memory. 

 > 
 > Do I have to configure something in the kernel and/or X-server to get a
 > better image?

I don't think it is the X-servers fault. Maybe a BIOS update might
help, or it is just a VIA problem that would have to be addressed in
the driver!?

 > 
 > I use a Duron 700 and an ASUS 7100 Geforce card. The nv module is
 > configured in XFree 4.0.3.
 > 

Ok, that seems to be a VIA. I also see some problems with our Duron
(ABit KT7-100) board. Although, it is worst when in memory capture
mode, i.e. no direct writing into graphics memory. I haven't tried
kvdr, so I don't know which mode it is using.  

Marcus

---------------------------------------------------------------------
Dr. Marcus Metzler                             
mocm@netcologne.de                     http://www.metzlerbros.de
mocm@convergence.de                    http://www.convergence.de

Convergence Integrated Media GmbH          
Rosenthaler Str. 51                   
D-10178 Berlin                             
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