Today I tried to boot Ubuntu with 9wm (which I had installed before), first modifying the GRUB boot from 'quiet splash' to 'text', after adding it to LightDM. As it doesn't worked, I've removed the LightDM entry and restored GRUB. But when I try to login with any window manager in LightDM, it just stops and opens LightDM again. If I try to run startx from a tty, it shows erros, saying all time that No protocol specified. What can I do?
UPDATE: It just happends with my user, logging with another one works.
