Comment 4 for bug 1028149

I forgot to mention: steps to reproduce:

1. Unplug external display at the end of the work day
2. Suspend the laptop
3. Bring the laptop home
4. Resume, browse some internet, suspend again.
5. Leave it overnight.
6. Bring it back to work
7. Resume, try to unlock -- can't: the lock screen is frozen, showing an old date and time, not reacting to input (although mouse cursor moves), then after a while gnome-shell crashes.
8. Plug in external display and do some work. Then back to step 1.

I've been unable to reproduce this using any shorter method.