Ubuntu 13.04
Intel SSD
i7 4770S
Using the processor graphics with the default driver.

I got the black screen with a white mouse cursor about a quarter the
time on boot and finally discovered the machine wasn't broken/crappy by
pressing CTRL-ALT-F1 to see if tty1 would work (previously I would just
press reset when the black screen issue came up).

I tried the sleep workaround here and have had good results so far (I used a 1 
second delay):
http://www.webupd8.org/2013/01/ubuntu-lightdm-black-screen-when-using.html

Is there some way to detect the error state and present an error message
to the user instead of the black screen?  A fix would be better but it
would be nice if we could at least give a little feedback so users don't
assume Ubuntu is broken.

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https://bugs.launchpad.net/bugs/969489

Title:
  lightdm tries (and fails) to start too early?

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