grep "(EE)" /var/log/Xorg.0.log
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(EE) NVIDIA(0): Failed to load GLX
(EE) AIGLX: DRI module not loaded
(EE) Failed to load /usr/lib/xorg-air/modules/extensions/libGLcore.so
(EE) xf86OpenSerial: Cannot open device /dev/wacom
(EE) xf86OpenSerial: Cannot open device /dev/wacom
(EE) xf86OpenSerial: Cannot open device /dev/wacom
(EE) xf86OpenSerial: Cannot open device /dev/wacom
(EE) xf86OpenSerial: Cannot open device /dev/wacom
(EE) xf86OpenSerial: Cannot open device /dev/wacom
(EE) Error loading keymap /var/lib/xkb/server-0.xkm