[Bug 1297132] Re: If launched during update, window is just a title bar

[Robert]

I was seeing this as well, and discovered that the cause was a stale
update-manager instance from a month ago was still running.  Killing
that process resulted in the symptom going away and update-manager works
properly now.

robert   17292  0.0  0.1 732572 12432 ?        SNl  May25   0:44
/usr/bin/python3 /usr/bin/update-manager --no-update --no-focus-on-map

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https://bugs.launchpad.net/bugs/1297132

Title:
  If launched during update, window is just a title bar

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

Bug description:
  update-manager 1:0.196.7, Ubuntu Trusty

  1. Begin installing updates at a terminal. (sudo apt-get update && apt-get upgrade)
  2. While updates are installing, launch Software Updater.

  What happens: Only a title bar appears, not the rest of the window.

  What should happen: The window appears with "Checking for updates…" progress as normal,
  <https://wiki.ubuntu.com/SoftwareUpdates#launch-manual>
  with status text "Waiting for other tasks to complete…".
  <https://wiki.ubuntu.com/SoftwarePackageOperations#general>

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