conor@AMD19:~$ beryl
**************************************************************
* Beryl system compatiblity check                            *
**************************************************************

Detected xserver                                : AIGLX

Checking Display :0.0 ...

Checking for XComposite extension               : passed (v0.3)
Checking for XDamage extension                  : passed
Checking for RandR extension                    : passed
Checking for XSync extension                    : passed

Checking Screen 0 ...

Checking for GLX_SGIX_fbconfig                  : passed
Checking for GLX_EXT_texture_from_pixmap        : passed
Checking for non power of two texture support   : passed
Checking maximum texture size                   : failed

Root window size (1280/1024) is bigger then maximum texture size (1024x1024)

X Error of failed request:  GLXBadContext
  Major opcode of failed request:  143 (GLX)
  Minor opcode of failed request:  4 (X_GLXDestroyContext)
  Serial number of failed request:  38
  Current serial number in output stream:  40