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[Marc Deslauriers <marc.deslauriers@xxxxxxxxxxxxx>]

** Visibility changed to: Public

** This bug is no longer flagged as a security vulnerability

** Visibility changed to: Public

** This bug is no longer flagged as a security vulnerability

** Package changed: ubuntu => gnome-screensaver (Ubuntu)

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https://bugs.launchpad.net/bugs/909170

Title:
  Lock screen sometimes lets you through for a moment

Status in “gnome-screensaver” package in Ubuntu:
  New

Bug description:
  Ubuntu 11.10 - fully updated as of 27th December 2011

  I have encountered several times a problem whereby my laptop, set to
  lock after the screen turns off (after being inactive for 10 minutes)
  will show the desktop once I wiggle my mouse to turn the display back
  on. This will give the person operating the laptop full access for
  about 5 seconds, at which time the screen will spontaneously start to
  fade (as it does when you lock it) and then display the lock screen.
  Almost as though the lock screen activation program hasn't caught up
  with the screen turning off until a few moments after it is turned
  back on.

  This is a problem because anyone can come to the computer and see
  exactly what I've been doing and have full access to the machine for
  about five seconds.

  Another issue I have seen is where the lock screen dialog shows over
  the desktop (under the same circumstance of the display turning back
  on when you wiggle the mouse/touchpad). This means people can see
  everything that is running even though they can't access it.

  This is in addition to the bug I reported earlier where the lock
  screen shows the top bar with the currently running application named.

  Another issue, which is not so much a bug as a design flaw, is that
  the lock screen does, in fact, fade in instead of just appearing when
  you press CTRL+ALT+L. It should blank the display immediately or at
  least display the lock screen so that if you locked it to stop someone
  seeing something who, say, just walked into the room, they wouldn't
  just see a gradual fading of something sensitive.

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