[Paraview] clipped scene with GPU rendering on NVIDIA tesla C1060

[pratik]

Hi everyone,
This is my configuration(PV v.3.10.1):
Server: desktop with 4 NVIDIA tesla C1060 cards; Client is a laptop.
To make use of GPU rendering, i start an Xserver on a free display like 
so(i cannot use the :0 display, also i cannot use $DISPLAY. if i use the 
$DISPLAY option, the server disconnects as soon as i load data from 
paraview):

startx -- :14

and my .xinitrc contains

exec xdm

so that xdm executes on the Xserver that is started.
once this is done, i simply run

mpirun -np 4 pvserver -display localhost:14.0
OR
pvserver -display localhost:14.0


Everything goes fine, client connects to server etc. But when the actual 
visualization is done, a strip at the top (roughly 1/3 of screen) is 
blanked(see the attached image). A curious thing that i observed was 
that when i change the orientation, rotate the object etc, the LOD actor 
seems to render properly(meaning that i can see the whole picture), but 
after i let it settle then this clipping takes place. Only a few weeks 
back the rendering seemed to have happened perfectly, so i don't know 
why it is suddenly behaving this way now.

Thanks  in advance for the help.

-pratik

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