optirun -vv glxgears
[   70.748829] [DEBUG]Reading file: /etc/bumblebee/bumblebee.conf
[   70.749104] [DEBUG]optirun version 3.2.1 starting...
[   70.749121] [DEBUG]Active configuration:
[   70.749132] [DEBUG] bumblebeed config file: /etc/bumblebee/bumblebee.conf
[   70.749142] [DEBUG] X display: :8
[   70.749152] [DEBUG] LD_LIBRARY_PATH:
[   70.749163] [DEBUG] Socket path: /var/run/bumblebee.socket
[   70.749173] [DEBUG] Accel/display bridge: virtualgl
[   70.749184] [DEBUG] VGL Compression: proxy
[   70.749194] [DEBUG] VGLrun extra options:
[   70.749204] [DEBUG] Primus LD Path: /usr/lib/primus:/usr/lib32/primus
[   70.762526] [INFO]Response: No - error: [XORG] (EE) /dev/dri/card1: failed to set DRM interface version 1.4: Permission denied

[   70.762546] [ERROR]Cannot access secondary GPU - error: [XORG] (EE) /dev/dri/card1: failed to set DRM interface version 1.4: Permission denied

[   70.762551] [DEBUG]Socket closed.
[   70.762563] [ERROR]Aborting because fallback start is disabled.
[   70.762570] [DEBUG]Killing all remaining processes.