Watching video using VNC

Jonathan Morton chromi "at"
Thu, 21 Mar 2002 15:36:24 +0000

>When I use VNC to access the TV computer it works fine but the 
>window that shows the video signal is black.

That's because TV cards normally use an "overlay" mode to boost 
performance and free the CPU.  The TV signal never reaches the video 
card's framebuffer where VNC can see it, but is instead transmitted 
directly through the video card's RAMDAC via a small buffer and the 
PCI bus.

If your TV application supports it, turn off "overlay" mode.  You 
will probably see performance drop considerably, but it should allow 
VNC to see it.  However, also be advised that VNC is not optimised 
for transmitting video images, and will likely perform very poorly in 
this configuration.

from:     Jonathan "Chromatix" Morton
mail:     chromi "at"  (not for attachments)
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