i have a big problem and need your help
 the problem is that i can't log-in to kde plasma dektop. When i log-in, i getting standard login splash screen (icons of Hdd, earch etc) and then i getting black screen for a half-a-second and then i getting back to login screen
   the problem also that virtual consoles  doesn't work
   i mean ctrl+alt+fXX doesn't show me a terminal
   but also show me login screen
   if i get to terminal i can solve my problems
   it seems something with X server
   from xorg0.log there is error that nvidia module can not be loaded
   last things i did before this problem appeared:
   removed nvidia driver
   and changed settings of kde desktop to use OpenGL 3 instead of XRender
   and then in automatically restarted kde
   and now i can't log in
   tasidus: ctrl+shift+Fx doesn't login me to VC
   it brings me to KDE login screen