[Bug 28929] Password dialog flicker when wrong password is entered

[Danilo Piazzalunga]

Public bug reported:
https://launchpad.net/malone/bugs/28929

Affects: gnome-screensaver (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
Using gnome-screensaver 2.13.5, I lock the screen, type a wrong
password, and then the dialog then shows "Checking password..." and
waits few seconds. So far, so good.

After this, the dialog starts moving/shaking/rocking/flickering for
almost a second, then it becomes "calm" again and shows the password
incorrect message.

I observed the same flicker on two different machines, using different
video drivers, so I guess this is not a system-dependent problem.