**************************************************************
* Beryl system compatiblity check                            *
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Detected xserver                                : AIGLX

Checking Display :0.0 ...

Checking for XComposite extension               : failed

No composite extension
beryl: No composite extension
X Error: BadDevice, invalid or uninitialized input device 168
  Major opcode:  148
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 168
  Major opcode:  148
  Minor opcode:  3
  Resource id:  0x0
Failed to open device