I installed Lubuntu 13.04 on my old notebook (HP 530) yesterday. After the install, I turned on the notebook, and see only black screen.
Interesting thing is that after plug VGA cable to the notebook, notebook's screen will show login screen and than works OK. Even after unplug VGA cable, Lubuntu works fine - until next reboot.
Does anyone have any idea, what is the reason for this behaviour and how to fix it? Thanks.