root:~# cat /var/log/Xorg.7.log | grep '(EE)'
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 2331.254] (EE) Failed to load module "glx" (module does not exist, 0)
[ 2331.255] (EE) Failed to load module "modesetting" (module does not exist, 0)
[ 2331.704] (EE) FBDEV(0): FBIOPUT_VSCREENINFO: Invalid argument
[ 2331.704] (EE) FBDEV(0): mode initialization failed
[ 2331.704] (EE)
[ 2331.704] (EE) AddScreen/ScreenInit failed for driver 0
[ 2331.705] (EE)
[ 2331.705] (EE)
[ 2331.705] (EE) Please also check the log file at "/var/log/Xorg.7.log" for additional information.
[ 2331.705] (EE)
[ 2331.941] (EE) Server terminated with error (1). Closing log file.