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