I am running antergos with kde plasma. I upgraded my system (crashing halfway through). I managed to complete the upgrade afterwards.

But now i’m not able to start xorg. Startx yields “fatal server error: parse_vt_settings: Cannot open /dev/tty0 (permission denied)”

Running startx as root leaves me at a black screen.

~/.xinitrc -> exec startkde

I have had no problems whatsoever the last 6 months.

Thanks for your time.