Applications shuffling around on desktops after screen lock

[Richard Merren]

I use multiple desktops to organize open applications. Also, I am currently using multiple monitors. If I arrange my applications (e.g. Chrome on the laptop screen of desktop one, Geany on the attached monitor on desktop 1, another chrome on the laptop screen of desktop 2, another app on the attached monitor on desktop 2) and then lock the screen, when I unlock all of the applications have moved around. Sometimes they all move to desktop 1, sometimes they are resized and half off the screen. But they are rarely on the same screen and desktop that I left them on.

This is new behavior since the latest version upgrade. Previously, applications stayed on the screens where I left them.

Some requested info:

$ lsb_release -rd
Description: Ubuntu 16.04 LTS
Release: 16.04

apt-cache policy xorg
xorg:
  Installed: 1:7.7+13ubuntu3
  Candidate: 1:7.7+13ubuntu3
  Version table:
 *** 1:7.7+13ubuntu3 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
.tmp.unity_support_test.0:

ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
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: Thu May 19 17:17:20 2016
DistUpgraded: 2016-04-29 20:29:44,172 DEBUG icon theme changed, re-reading
DistroCodename: xenial
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Haswell-ULT Integrated Graphics Controller [17aa:3978]
InstallationDate: Installed on 2014-12-03 (532 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: LENOVO 80H1
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-22-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to xenial on 2016-04-30 (19 days ago)
dmi.bios.date: 09/28/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: B9CN12WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Lenovo Edge 15
dmi.board.vendor: LENOVO
dmi.board.version: 31900058 WIN
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo Edge 15
dmi.modalias: dmi:bvnLENOVO:bvrB9CN12WW:bd09/28/2014:svnLENOVO:pn80H1:pvrLenovoEdge15:rvnLENOVO:rnLenovoEdge15:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoEdge15:
dmi.product.name: 80H1
dmi.product.version: Lenovo Edge 15
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2
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
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Tue May 17 10:15:01 2016
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 1103
 vendor LGD
xserver.version: 2:1.18.3-1ubuntu2

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.