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[Lem <1451278@xxxxxxxxxxxxxxxxxx>]

This is still a problem in 16.04 as of 2016-04-07. Different
configuration to the original report:

Ubuntu Studio 16.04 Beta 2, updated.
Installed ubuntu-desktop task to get Unity desktop.

Same 3x2 workspace configuration, single 1920x1200 monitor, however this
time using a Radeon 380X on AMDGPU/radeonsi.

There seems to be no noticeable pattern to this, maybe it has something
to do with various indicators? I'm running multiload-indicator, cpufreq
indicator, psensors, and hamster-indicator.

Pressing Alt to bring up the HUD, or Super for Dash gets the Unity
launcher back to its proper state.

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https://bugs.launchpad.net/bugs/1451278

Title:
  Unity launcher / dash does not reactivate after expo

Status in compiz-plugins-main package in Ubuntu:
  New

Bug description:
  Sometimes, the Unity launcher / dash will not reactivate (return to
  its default state) after the Expo plugin has finished (as in, a
  workspace has been selected, so the desktop zooms back in). The icons
  on the launcher will remain greyed out (or desaturated, rather).
  Windows on the desktop are all functional, however any interaction
  with the launcher, dash or indicators with the mouse (left clicks)
  will cause the Expo plugin to activate again.

  Pressing Alt (for HUD), Alt-tab (window switcher), or Start/super
  (open dash), will return the launcher back to its normal active state.
  Going back into Expo and then back to a desktop can fix it sometimes
  too.

  
  This has been an issue for a couple of releases now (currently 15.04). I have not found a reliable way to reproduce it, however, here's my setup:

  * Normal Ubuntu Unity desktop
  * Latest nvidia driver from Ubuntu repository (currently nvidia-346)
  * Workspaces enabled in a 3x2 configuration
  * Expo activation bound to mouse to top right of screen.
  * Single monitor, 1920x1200, GTX560Ti 1Gb

  I haven't noticed a pattern to this yet, seems fairly random, however
  an inconvenience when it does happen.

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