With Sabayon 3.3, I could use Beryl just fine. ( Acceleration manager = auto)
Now with Sabayon 3.4e, I get a blank screen if I use XGL and lockups if I use Aiglx.
I have downgraded nvidia as per viewtopic.php?f=5&t=8944
( that help stability!! )
xorg.93.log shows :
(II) NVIDIA(0): Setting mode "nvidia-auto-select"
(II) Loading extension NV-GLX
(II) NVIDIA(0): NVIDIA 3D Acceleration Architecture Initialized
(II) NVIDIA(0): Using the NVIDIA 2D acceleration architecture
..so I do have 3d. ( Blender works... whew.) , but if I use teminal; 'compiz --replace' , I get a white screen.
What else can I try?
Act weird. It supports freedom.
It gives others permission to act weird too.