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[Ryan Leonard <rhinoisnot@xxxxxxxxx>]

@vincentthiele Well, I don't think it's going to be because of the
nvidia drivers, I (think) I'm running on Intel graphics (2011 MacBook
Air 11").  I haven't noticed it in a while though, but I've been
avoiding fullscreening applications much more.

I found that switching into another shell (virtual shell 6 for example)
would allow me to force logout, saving a reboot, I think I was killing
gnome with killall gnome, maybe with a wildcard, I've managed to avoid
it for a while, so I can't remember exactly what I used.

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https://bugs.launchpad.net/bugs/1246509

Title:
  Computer Freezes when Fullscreening Application (Snapping to
  Fullscreen)

Status in “unity” package in Ubuntu:
  Confirmed

Bug description:
  I'm running Ubuntu 13.10, and about twice a day, when I try to full-
  screen an application, Unity/Ubuntu partially crashes.

  I am trying to full screen the application by dragging the window to
  the top of the screen, something I do many, many times a day.

  I expect for the animation to finish, and the window that I'm dragging
  to pop into "full-screen" mode, where it takes the entire window.

  Instead, the animation hangs half-way before I release the mouse
  (while I'm still dragging), and the computer partially hangs.  The
  mouse still will move, but doesn't have any effect on the desktop.  I
  _am_ able to Control-alt [1-6] to get into an alternative terminal,
  and I can execute most commands, however trying to logout of Ubuntu
  from the terminal or kill Unity has no effect, the graphics remain
  frozen on the screen.

  I don't know any more debugging actions to take, I'd be happy to
  submit more if someone had an idea of which diagnostics/logs I should
  run or look at.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: unity 7.1.2+13.10.20131014.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  Uname: Linux 3.11.0-12-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  Date: Wed Oct 30 17:53:41 2013
  InstallationDate: Installed on 2013-05-02 (180 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MarkForUpload: True
  SourcePackage: unity
  UpgradeStatus: Upgraded to saucy on 2013-10-23 (7 days ago)

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