beryl-manager &
[1] 4919
[barbaros@orion ~]$XGL Absent, checking for NVIDIA
Nvidia Present
Relaunching beryl with __GL_YIELD="NOTHING"
XGL Absent, checking for NVIDIA
Nvidia Present
beryl: Another composite manager is already running on screen: 0
beryl: No manageable screens found on display :0
trying '/home/barbaros/.xcompmgrrc' as configfile