Computer Freezes when Fullscreening Application (Snapping to Fullscreen)

[Ryan Leonard]

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)

[Anthony Hammond (tonyh220)]

This is also happening for myself. Vanilla Ubuntu 13.10.

[Vincent Thiele (vincentthiele)]

Same problem here using nvidia propitary drivers.

[Ryan Leonard (rhinoisnot)]

@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.

[Christopher Townsend (townsend)]

This sounds like a duplicate of bug #1244754. I'm going to mark it as such, but if I'm wrong, please unduplicate.