I installed Linux Mint 18 (Sarah) with KDE on my iMac 21.5 configured it and updated it. I got the problem that the lockscreen freezes and shows the message i should use the command line (alt+ctrl+f<>) for unlocking the session with loginctl unlock-sessions. But when i switch to one of the command lines (doesn't matter which one) the screen turns black. I can unlock the screen but can't see the command line. How can i solve the problem? Maybe.. both problems?
Mint 18 Sarah - KDE command lines not visible (alt+ctrl+f<>) and lockscreen freezes
command line;linux mint;kde;screen lock