o seu caso é semelhante ao presente relatório de erros
Como eu posso ver, é relacionado a abelha. Você está usando?
Quando executo unity-control-center do terminal, obtenho:
libGL error: failed to load driver: swrast
(unity-control-center:21776): Gdk-ERROR **: The program 'unity-control-center' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadLength (poly request too large or internal Xlib length erro'.
(Details: serial 227 error_code 16 request_code 155 (GLX) minor_code 1)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the GDK_SYNCHRONIZE environment
variable to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)
Trace/breakpoint trap (core dumped)
Estou executando drivers gráficos NVIDIA, se isso ajudar:
01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 640M Mac Edition] (rev a1)