Desktop freezes when there's an application on fullscreen and you switch workspaces

[Pablo Piaggio]

I can reproduce this bug whenever I want:

Open either a picture, or a movie. It does not matter the application (tested on gthumb, eog, vlc, mpv, totem).

Put it on fullscreen.

Switch workspaces a few times. Anything from just one to four switches and the desktop freezes.

Going to console, top and htop shows compiz eating CPU at ~200-300%

syslog shows this sometimes:

Oct 21 16:44:14 vanhalen kernel: [ 870.793315] NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ChID 0003, Class 00008597, Offset 0
00015e0, Data 00000000

If I kill compiz I loose my session.

Thanks in advance.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
Uname: Linux 4.4.0-45-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:01:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 340.96 Sun Nov 8 22:33:28 PST 2015
 GCC version: gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.2)
.tmp.unity_support_test.0:

ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
BootLog:

CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Tue Oct 25 23:03:50 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus:
 bbswitch, 0.8, 4.4.0-31-generic, x86_64: installed
 bbswitch, 0.8, 4.4.0-45-generic, x86_64: installed
 nvidia-340, 340.96, 4.4.0-31-generic, x86_64: installed
 nvidia-340, 340.96, 4.4.0-45-generic, x86_64: installed
GraphicsCard:
 NVIDIA Corporation GT218M [GeForce 310M] [10de:0a75] (rev a2) (prog-if 00 [VGA controller])
   Subsystem: Toshiba America Info Systems GT218M [GeForce 310M] [1179:fd30]
GsettingsChanges:
 b'org.compiz.core' b'outputs' b"['1280x1024+1366+0', '1366x768+0+0']"
 b'org.compiz.core' b'hsize' b'2'
 b'org.compiz.core' b'active-plugins' b"['core', 'composite', 'opengl', 'snap', 'mousepoll', 'wall', 'imgpng', 'commands', 'compiztoolbox', 'copytex', 'unitymtgrabhandles', 'move', 'resize', 'regex', 'vpswitch', 'grid', 'place', 'session', 'animation', 'fade', 'workarounds', 'expo', 'scale', 'ezoom', 'unityshell']"
 b'org.compiz.core' b'vsize' b'2'
InstallationDate: Installed on 2016-10-20 (5 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: TOSHIBA Satellite A665
PackageArchitecture: all
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-45-generic root=UUID=595240cc-9430-48bc-8a61-802a5ad9eb92 ro quiet splash
SourcePackage: compiz
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/14/10
dmi.bios.vendor: TOSHIBA
dmi.bios.version: 1.80
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: NWQAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.asset.tag: *
dmi.chassis.type: 9
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvr1.80:bd09/14/10:svnTOSHIBA:pnSatelliteA665:pvrPSAW3U-0DE039:rvnTOSHIBA:rnNWQAA:rvr1.00:cvnTOSHIBA:ct9:cvrN/A:
dmi.product.name: Satellite A665
dmi.product.version: PSAW3U-0DE039
dmi.sys.vendor: TOSHIBA
version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2.2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2.2
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Tue Oct 25 15:50:16 2016
xserver.configfile: default
xserver.errors: open /dev/fb0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.18.3-1ubuntu2.2