[Bug 1671540] Re: Software Updater window is invisible

[James Cobban]

On 17.04 I have a very similar problem.  The Software Updater icon in
the Unity launch bar has turned green to indicate that updates are
available.  When I click on that icon it gains an orange "halo"
indicating that the system knows that it has been selected, but no
window opens.  I cannot manually start the Software Updater.  I have to
reboot in order to run the Software Updater.  xwininfo knows the window
is there but nobody else does.  I have had this problem for over a month
and I would really appreciate some guidance.

$ xwininfo -name "Software Updater"

xwininfo: Window id: 0x3200008 "Software Updater"

  Absolute upper-left X:  769
  Absolute upper-left Y:  384
  Relative upper-left X:  769
  Relative upper-left Y:  384
  Width: 447
  Height: 335
  Depth: 24
  Visual: 0x300
  Visual Class: TrueColor
  Border width: 0
  Class: InputOutput
  Colormap: 0x3200007 (not installed)
  Bit Gravity State: NorthWestGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsUnMapped
  Override Redirect State: no
  Corners:  +769+384  -704+384  -704-361  +769-361
  -geometry 447x335+769+384

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https://bugs.launchpad.net/bugs/1671540

Title:
  Software Updater window is invisible

Status in update notifier:
  New
Status in update-notifier package in Ubuntu:
  Confirmed

Bug description:
  The software Updater icon has just appeared in my Launcher (it's
  probably trying to tell me that there are updates available, but who
  knows really). However, the window cannot be accessed in any way.

  By clicking on the launcher icon, a small arrow appears on the right
  of it, and the title "Software Updater" appears on the top screen
  title bar (see screenshot), but no window becomes visible.

  By hitting Alt+Tab, Software Updater is not even in the list of the
  available windows: this is an inconsistency that, no matter whether or
  not there's a bug in Software Updater itself, reveals a lower level
  bug in Unity (or whatever system component is responsible for
  switching windows), as there must ALWAYS be a 1:1 correspondence
  between open windows listed in Launcher and windows available via
  Alt+TAB.

  I don't know whether this is related to bug #1671529, but there is a
  difference (I'm almost sure of): in the case of that one the window
  was available via Alt+TAB, though it wouldn't show up if selected.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: update-manager 1:16.04.5
  ProcVersionSignature: Ubuntu 4.4.0-64.85-generic 4.4.44
  Uname: Linux 4.4.0-64-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Mar  9 17:07:38 2017
  DpkgHistoryLog.txt:

  DpkgTerminalLog.txt:

  GsettingsChanges:
   b'com.ubuntu.update-manager' b'show-details' b'true'
   b'com.ubuntu.update-manager' b'window-height' b'378'
   b'com.ubuntu.update-manager' b'first-run' b'false'
   b'com.ubuntu.update-manager' b'window-width' b'484'
   b'com.ubuntu.update-manager' b'launch-time' b'1489072980'
  InstallationDate: Installed on 2013-10-11 (1244 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to xenial on 2016-12-11 (87 days ago)

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