I will preface that I am VERY new Ubuntu and linux as a whole.
I have been tinkering with various things in Ubuntu the past couple days namely the apt-get upgrade and apt-get dist-upgrade commands.
Now I understand that these are updating various things that are used in the background and even remove unneeded things (in the case of the dist-upgrade that is) when I upgrade or dist-upgrade whenever I start or restart my laptop lightDM seems to not start. I have no other DMs installed at the moment. What I mean by not start the sound of the computer has finished booting is played (the drum noise), my cursor comes up but is just a blank black screen. I can press ctrl + alt + F1 and stop lightDM and start it again and use the laptop fine but something tells me when I upgrade something is being broken.
Now I am well aware that this Ubuntu release (raring ring tail 13.04) is in beta but shouldn't an "upgrade" improve things? Or am I misunderstanding something all together about those commands. Or have I stumbled upon a bug inside of lightDM and should post my findings somewhere.
If needed I can post the various logs in /var/log/lightdm for further interpretation.