Posted by jmaasing on Jul 27, 2014; 12:42pm
URL: https://forum.jogamp.org/Poor-performances-on-Linux-Ubuntu-unless-desktop-effects-are-disabled-tp4032647p4032664.html

A couple of years ago I ran into similar things using compiz. I don't know what caused it but if desktop effects was on it stalled _every_ other OpenGL application. Maybe the driver couldn't keep up with the amounts of draw calls or something but it was super slow. If I disabled desktop effects I could run several OpenGL applications at the same time without much penalty but there was something in the compositing window manager that killed performance.