DeBiAn:/home/waspius# **************************************************************
* Beryl system compatiblity check                            *
**************************************************************

Detected xserver                                : AIGLX

Checking Display :0.0 ...

Checking for XComposite extension               : failed

No composite extension
beryl: SmcOpenConnection failed: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
beryl: No composite extension
Window manager warning: Lost connection to the display ':0.0';
most likely the X server was shut down or you killed/destroyed
the window manager.
**************************************************************
* Beryl system compatiblity check                            *
**************************************************************

Detected xserver                                : AIGLX

Checking Display :0.0 ...

Checking for XComposite extension               : failed

No composite extension
beryl: SmcOpenConnection failed: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
beryl: No composite extension