sariq@lenovo:~$ beryl-manager
sariq@lenovo:~$ libGL warning: 3D driver claims to not support visual 0x5b
XGL Absent, checking for NVIDIA
Nvidia Absent, assuming AIGLX
libGL warning: 3D driver claims to not support visual 0x5b
beryl: No stencil buffer. Clipping of transformed windows is not going to be correct when screen is transformed.
Initiating splash
beryl: water: GL_ARB_fragment_program is missing
Reloading all options.