I have tested this yesterday, and i don't have this issue, may be because i have 4 digit password on system i have tested on, and i'm entering password on numpad?
gnome-screensaver: Installed: 3.6.1-0ubuntu16 Ubuntu 15.04, Unity DE -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/1441867 Title: First entered password at lockscreen is always wrong after screen was turned off after inactivity To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1441867/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs