I have Raspberry pie 3 with Raspbian, after turn it off and turn on again, after boot (displaying four raspberry), the display shows only a black screen.
I can login with alt+ctl+f1 and access a command line. Where is the problem?
After using Ctrl+Alt+F1, try using Ctrl+Alt+F7. this should return you back to your normal screen.
If that doesn't work, return to first screen using Ctrl+Alt+F1, then type startx. Enter that and it should reboot normally