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[Lem <1060580@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1018215 ***
    https://bugs.launchpad.net/bugs/1018215

I marked this as a duplicate of
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1018215 because I'm
confident both issues (drag and drop events being lost on panel fade,
and lag during panel fade) have the same cause.

It's worth noting neither bugs are present when the Unity plugin is
disabled from within CCSM. It's also worth noting that when re-enabling
the Unity plugin from within CCSM on Ubuntu 13.10, the panel fade
animation during dragging doesn't initate, and neither this lag nor the
lost drop events occur. So I conclude this bug is precisely related to
the fade animation of the unity panel.

** This bug has been marked a duplicate of bug 1018215
   Unity launcher appearing interrupts GTK drag and drop operation (that's nowhere near the launcher)

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https://bugs.launchpad.net/bugs/1060580

Title:
  Dragging and Dropping files and folders lags due to launcher icon fade
  out

Status in Nux:
  Triaged
Status in Unity:
  Triaged
Status in “unity” package in Ubuntu:
  Confirmed

Bug description:
  What I expected to happen:

  Being able to seamlessly drag and drop a file or folder to any
  destination.

  
  What really happened (See attached screencast):

  Initial lag when starting to drag the icon. Lag lasts as long as it
  takes the launcher to fade out all icons except the nautilus home
  icon. As soon as this fade out process is complete, dragging the icon
  works flawlessly again.

  Other notes:

  This worked fine initially.

  $lsb_release -rd
  Description:	Ubuntu 12.04.1 LTS
  Release:	12.04

  $apt-cache policy unity
  unity:
    Installed: 5.16.0-0ubuntu1
    Candidate: 5.16.0-0ubuntu1
    Version table:
   *** 5.16.0-0ubuntu1 0
          500 http://ftp-stud.hs-esslingen.de/ubuntu/ precise-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       5.10.0-0ubuntu6 0
          500 http://ftp-stud.hs-esslingen.de/ubuntu/ precise/main amd64 Packages

  $apt-cache policy nautilus
  nautilus:
    Installed: 1:3.4.2-0ubuntu4
    Candidate: 1:3.4.2-0ubuntu4
    Version table:
   *** 1:3.4.2-0ubuntu4 0
          500 http://ftp-stud.hs-esslingen.de/ubuntu/ precise-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       1:3.4.1-0ubuntu1 0
          500 http://ftp-stud.hs-esslingen.de/ubuntu/ precise/main amd64 Packages

  
  $ fglrxinfo

  display: :0.0  screen: 0
  OpenGL vendor string: Advanced Micro Devices, Inc.
  OpenGL renderer string: AMD Radeon HD 6500M/5600/5700 Series
  OpenGL version string: 4.2.11733 Compatibility Profile Context

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