User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:11.0) Gecko/20100101 Firefox/11.0 Build Identifier: If present windows effect is active it is not possible to lock the screen. Reproducible: Always Steps to Reproduce: 1. Enable Present windows under settings -> desktop effects 2. Hit CTRL+F9 or go upper left with the mouse cursor if you have this effect's sfortcut enabled 3. Try to lock the screen using CTRL+ALT+L or suspending the computer Actual Results: Screen lock doesn't work if you suspended the computer when resumed you won't be asked for the password. Expected Results: The effect is cancelled and the lock correctly applied. I think this is kinda a security issue, even if might be *low* risk.
*** This bug has been marked as a duplicate of bug 234153 ***