Must manually restart lightdm to have it appear

I recently did an Ubuntu command-line install on my work laptop, then install Мат (core) and lightdm. I have an Intel graphics драйвер. When I turn on my computer, it boots to в black screen. Прессинг Ctrl+Alt+F2 allows я to login to в терминал, where I:

sudo systemctl restart lightdm

Which then makes lightdm appear. Trying to get some Ubuntu traction at work, so any help appreciated.