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[Chris J Arges <1320438@xxxxxxxxxxxxxxxxxx>]

** Also affects: unity (Ubuntu Trusty)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1320438

Title:
  Unity launcher auto hide fails on screen unlock using "Super+L"

Status in Unity:
  Fix Released
Status in Unity 7.2 series:
  In Progress
Status in “unity” package in Ubuntu:
  Fix Released
Status in “unity” source package in Trusty:
  New

Bug description:
  [Impact]
  The launcher is not properly auto-hidden when locking the screen using Super+L keybinding

  [Test case]
  1. From Unity Control Center -> Appearance -> Behavior enable the launcher auto-hiding
  2. Press Super+L in order to lock the screen
  3. Unlock the screen, now the launcher should be hidden

  [Regression potential]
  Unity might hang when locking the screen (due to the sync compiz call to screen->getCurrentTime() that in some very-rare cases in the past demonstrated to be prone to some race conditions). No case has been recorded so far in this scenario, though.

  -----

  I use a Compaq cq40 running Trusty. If I lock the screen using the
  "Super+L" hotkey, upon unlocking the unity launcher bar appears on the
  screen. I'll have to press "Super" key twice to hide it again (Hitting
  once brings up the dash home, hitting once again hides the launcher).
  This is not observed if use the "Ctrl+Alt+L" hotkey. The following are
  the system details:

  @Enigma:~$ lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 14.04 LTS
  Release:	14.04
  Codename:	trusty

  @Enigma:~$ uname -a
  Linux Enigma 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:31:42 UTC 2014 i686 i686 i686 GNU/Linux

  @Enigma:~$ sudo apt-cache policy unity
  unity:
    Installed: 7.2.0+14.04.20140423-0ubuntu1.2
    Candidate: 7.2.0+14.04.20140423-0ubuntu1.2
    Version table:
   *** 7.2.0+14.04.20140423-0ubuntu1.2 0
          500 http://in.archive.ubuntu.com/ubuntu/ trusty-updates/main i386 Packages
          500 http://security.ubuntu.com/ubuntu/ trusty-security/main i386 Packages
          100 /var/lib/dpkg/status
       7.2.0+14.04.20140416-0ubuntu1 0
          500 http://in.archive.ubuntu.com/ubuntu/ trusty/main i386 Packages

  Auto hide is enabled for unity launcher. Is there a way to resolve
  this annoying behaviour? Thanks!

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