[Bug 1332543] Re: Software updater window only showing title bar

[Mike Miller]

Ok, it did not even require a full system restart.  I was able to ssh in
to my box (and close out VNC client) and then all I did was restart my
GUI (for xUbuntu 14.04 trusty is LightDM (kicks Unity's ass by the way I
swear by xUbuntu and will not use Ubntu and Unity (just a side note
anyways back to it).  From SSH session all I did was issue sudo service
lgihtdm restart and viola after it restarted and I logged back in
Software Updater GUI is opening as it should again.

Keep in mind if you go to try this you CAN NOT do it from your desktop
with a terminal emulator.  If you do not use SSH then you can hit I
think it's the ctrl+alt+F keys (ie F1 - F8) it could be just ctrl+F key
and that should drop you to a text only login screen.  From there just
login with your user and password and when you get the $ prompt then
just use:

sudo service lightdm restart

(or you could prolly fill in whatever it maybe that runs unity).

If you have xUbuntu the Lightdm restart will work for you, you can stop
here, below is further info on restarting Unity for those with Ubuntu...

Now I have googled around and found the following..  Ubuntu itself looks like sudo service lightdm restart may work. If not try one of the following:
After getting past text only login:

killall unity-panel-service

and if it does not restart on it's own to start it run:

/usr/lib/unity/unity-panel-service

If it's the 2d version you are running then use:

killall unity-2d-panel

Some have said in 14.04 that the above unity-panel stuff may not work,
but the following does:

kill -9 $(pgrep unity-panel-ser); compiz --replace

Sources:
http://askubuntu.com/questions/495997/how-to-properly-restart-unity
http://askubuntu.com/questions/46788/is-it-possible-to-restart-the-unity-panel-without-restarting-compiz
http://askubuntu.com/questions/371915/how-to-restart-unity-panel-service

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https://bugs.launchpad.net/bugs/1332543

Title:
  Software updater window only showing title bar

Status in update-manager package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu 14.04

  The software updater applications will pop up when there are updates.
  But the window is just a title bar strip with the title text "Software
  Updater" and the X and -

  I have tried resizing it but the window size is locked.

  When I run apt-get update, I get two 404 errors - I'm not sure if it's
  associated with the bug though.

  W: Failed to fetch
  http://ppa.launchpad.net/openshot.developers/ppa/ubuntu/dists/trusty/main
  /binary-amd64/Packages  404  Not Found

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