for some reason the hanging doesn't happen as often when using compiz as opposed to metacity. I can live with this as long as I can be sure that when operating in fullscreen mode for several hours at the performance I am not going to have any hanging. My casual observations make me optimistic but if anybody has seen it hang while in fullscreen mode please let me know immediately so I can find an alternative solution for the gig on Fri.

-John

Roman Haefeli wrote:
On Sat, 2008-11-22 at 16:37 -0600, John Harrison wrote:
  
Running the nvidia proprietary driver, ubuntu 8.10 64 bit (Kernel 
2.6.27-8) an open and rending Gem window will hang the machine for 
random periods of up to 30 seconds. Problem can be triggered by clicking 
and dragging the GEM window with the mouse and trying to move the 
window. CPU appears to be maxed out during that time. I tried NVIDIA 
graphics driver version 96 and 177 and the results were the same. If I 
switch to the open source nividia driver the problem disappears --- and 
I enjoy 75% CPU usage showing only a live feed to a Gem window on a 4G 
AMD 64bit dual core. ;-)

lspci describes my graphics card as an nVidia GeForce 6150SE nForce 430 
(rev a2)

Besides using the open source driver, anybody know of a solution?
    

i have seen that behaviour as well. the only solution i could come up
with was not to move the gemwin with the cursor. also resizing a gemwin
with rendering turned on doesn't work for me (the window becomes
resized, but only the old area of the window is redrawn). the only
solution i could come up is to set all window properties through
messages to gemwin.

roman
 


	
		
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-- 
John Harrison
http://alumni.media.mit.edu/~harrison