keybard shortcuts stopped working for switching workspaces

[Sascha Peter]

Since last time I updated my system, I can't switch between workspaces anymore using CTRL+ALT+arrows.
SUPER+S is still working fine, though.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: unity 7.4.0+16.04.20160801.2-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
.tmp.unity_support_test.0:

ApportVersion: 2.20.1-0ubuntu2.1
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: Sat Sep 3 12:29:34 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation Sky Lake Integrated Graphics [8086:1916] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Dell Skylake Integrated Graphics [1028:06df]
InstallationDate: Installed on 2016-06-13 (81 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 0a5c:5832 Broadcom Corp.
 Bus 001 Device 002: ID 1bcf:2b91 Sunplus Innovation Technology Inc.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. Latitude E5570
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-36-generic.efi.signed root=UUID=104c23c8-f440-48a6-b8a0-99dd81d483e3 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/14/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.4.7
dmi.board.name: 0R3VX4
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.4.7:bd03/14/2016:svnDellInc.:pnLatitudeE5570:pvr:rvnDellInc.:rn0R3VX4:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E5570
dmi.sys.vendor: Dell Inc.
upstart.unity-panel-service.log:
 (unity-panel-service:3664): Indicator-Appmenu-WARNING **: Already have a menu for window ID 69206239 with path /com/canonical/menu/42000DF from :1.106, unregistering that one

 (unity-panel-service:3664): Indicator-Appmenu-WARNING **: Already have a menu for window ID 75497503 with path /com/canonical/menu/480001F from :1.112, unregistering that one
version.compiz: compiz 1:0.9.12.2+16.04.20160801.3-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2.1
version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.3
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: Sat Sep 3 12:03:31 2016
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 4589
 vendor AUO
xserver.version: 2:1.18.3-1ubuntu2.3

[Launchpad Janitor (janitor)]

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

[Richard King (graphiclunarkid)]

I got hit by this after running "apt update" this morning - I noticed Unity was one of the packages updated.

I discovered a workaround on Ask Ubuntu: https://askubuntu.com/questions/819585/workplace-switcher-stopped-working-in-ubuntu-16-04 which led me to this bug. The work-around works for me.

I also found that the "grid" features of unity no longer worked after this morning's update: dragging a window to the left or right edge of the screen no longer resized it to the "left-half" or "right-half" size (i.e. the full height of the screen, and half the width, snapped to the left or right edge). I enabled the "grid" setting in the "CompizConfig settings manager", which restored the feature, however I was prompted to decide about a number of keyboard shortcut conflicts. I mention this here because the symptoms occurred at the same time as this bug, and in the same area, therefore they might have the same root cause.

[ttbek (ttbek)]

I would just like to confirm that my experience matches that of Richard King 100%.... I should update more often though since I only did so last night and encountered this.

[Sascha Peter (saschapeter73)]

Updating to 16.10 didn't solve.

[Luca A. Rossi (larossi)]

This also happened on my PC after the latest apt upgrade. Keyboard shortcuts for switching workspaces stopped working and the drag-to-maximize feature was gone.

I had to manually install compizconfig-settings-manager and re-enable both "Desktop wall" and "Grid" plug-ins.

[Raik Gruenberg (raik-gruenberg)]

Same here: I just lost my keyboard shortcuts for workspace switching. None of the workarounds works for me.

System: Ubuntu 16.04

Everything worked fine until 2 or 3 days ago. I first run into the problem that new windows were created with their top and left edge hidden behind the menu and launcher bar. I then installed ccsm to correct this problem. This in fact worked but now the CTRL - ALT - arrow workspace switching (as well as a custom shortcut for moving Windows between workspaces) stopped working. No setting in ccsm seems to correct this.