poor opengl performance with compiz

[Milena]

Hi

I installed Compiz 0.8.5 from Leigh's repo and it works fine but I have very poor performance in fullscreen opengl applications, for example the unigine tropics benchmark is like 15-20 fps lower than with metacity or kwin compositing. in kde with kwin i got no performance drop at all when i use compositing effects. is there anything i can tweak in compiz ? my graphic card is a nvidia gtx275 and cpu is 3ghz quad so its not a hardware problem. my other question is can i make a startup script to temporally suspend compiz when launching my apps ?

thanks in advance

[leigh123linux]

Originally Posted by Milena

Hi

I installed Compiz 0.8.5 from Leigh's repo and it works fine but I have very poor performance in fullscreen opengl applications, for example the unigine tropics benchmark is like 15-20 fps lower than with metacity or kwin compositing. in kde with kwin i got no performance drop at all when i use compositing effects. is there anything i can tweak in compiz ? my graphic card is a nvidia gtx275 and cpu is 3ghz quad so its not a hardware problem. my other question is can i make a startup script to temporally suspend compiz when launching my apps ?

thanks in advance

Enable loose-bindings ( fusion-icon drop down menu / compiz options ) and in ccsm enable the workarounds plugin and make sure the 'force sync between X & GLX' is selected.

[Milena]

thanks leigh the workarounds setting did the trick, the plugin wasn't enabled before