Comment 13 for bug 1259339

I'm having this issue, too. Here are three workarounds:

Here are three workarounds:

1) Log out before closing your laptop lid. Your screen should start normally when you log in next.

2) If after opening your laptop and logging in you get a black screen, open TTY1 by pressing

CTRL + ALT + F1.

At the prompt, log in with your name and password. Then type:

sudo service lightdm restart

Log in one more time and your screen should be restored.

3) If after opening your laptop and logging in you get a black screen, use a keyboard shortcut to open a terminal (You'll be doing this with a blank screen, so type carefully!):

Super + t

Then type:

xrandr -- auto