Sorry, I'm not really able to help with startx stuff. It hasn't worked for me since about 2007 or so. It seems pretty involved these days to get it working. I've just been starting and stopping the display manager, which is quite easy using systemd.
sudo systemctl start gdm sudo systemctl stop gdm Maybe this will help. ~Kyle http://kyle.tk/ -- "Kyle? ... She calls her cake, Kyle?" Out of This World, season 2 episode 21 - "The Amazing Evie"
