[Bug 965422] Re: Update Manager window does not appear when clicking button on Unity launcher bar

[Philip Johnson]

I  am having a similar experience on a very recent install of 12.04
amd64.  This exact series of events have happened twice for me, on two
different days:

I log in, and leave the computer for a while (screen locks during this
time).  Come back; unlock screen and notice the update-manager icon
appears in dash showing number of packages requiring update along with
blue triangle indicating it wants attention.  Clicking on the icon
produces no response.  Running "update-manager" from terminal also
produces no response.  The update-manager is clearly in the list of
running processes (ps -e | grep update-manager), but is presumably not
receiving the signal to open or not displaying.

Maybe the problem is an interaction with the locked screen?

problem can be awkwardly worked around from terminal by:
killall update-manager
update-manager

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https://bugs.launchpad.net/bugs/965422

Title:
  Update Manager window does not appear when clicking button on Unity
  launcher bar

Status in “update-manager” package in Ubuntu:
  Confirmed

Bug description:
  When the update-manager detects that there are updates to installed
  packages, the update-manager icon appears on the launcher bar with a
  number in the upper-right corner with the # of packages that have
  updates. However, when I click on the icon, no window appears on any
  of the desktops. Even when I press the Window-W key combo to activate
  spread mode to display all open applications on all workspaces, I do
  not see the update-manager window. Double-clicking does nothing.
  Right-clicking then selecting the "Update Manager" selection does
  nothing as well.

  My only option is to right-click and select "Install All Available
  Updates", which is annoying because I would like to know what is being
  updated before applying the update.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: update-manager 1:0.152.25.8
  ProcVersionSignature: Ubuntu 3.0.0-16.29-generic 3.0.20
  Uname: Linux 3.0.0-16-generic x86_64
  NonfreeKernelModules: wl nvidia
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  Date: Mon Mar 26 11:33:58 2012
  InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
  PackageArchitecture: all
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to oneiric on 2012-02-06 (48 days ago)

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