Comment 7 for bug 1431149

I reopen the bug since it still occurs from time to time. Switching to xscreensaver will probably "fix" it because the locking mechanism is completely different.

Please let me know what I can do to gather more information about this bug when the following situation occurs:
- Laptop was in suspend
- Laptop woke up, screen is locked
- I enter my password, the screen becomes black
- I still can switch to console (Strg+Alt+F1) - it shows a login prompt and can switch back to X11 (Strg+F7) to see the balck screen