Public bug reported: Show desktop hot corner only works once, after this the hot-corner doesn't activate again. Solution found here: https://askubuntu.com/questions/419205/show-desktop-with-hot-corners- not-working
["Moving every single option in compiz settings manager i did find that when unity was disable then SHOW DESKTOP works as expected with the HOT CORNERS. So i click every single checkmark in UBUNTU UNITY PLUGIN to finally find that SHOW LIVE PREVIEWS OF WINDOWS IN THE SWITCHER was the one to blame. (After uncheck it then hot corners works as expected, phew!)." ] ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: unity 7.4.0+16.04.20160526.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 .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: Mon Jul 18 10:35:28 2016 DistUpgraded: 2016-07-13 09:59:41,630 DEBUG icon theme changed, re-reading DistroCodename: xenial DistroVariant: ubuntu EcryptfsInUse: Yes ExecutablePath: /usr/bin/compiz GraphicsCard: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0152] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Gigabyte Technology Co., Ltd Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [1458:d000] InstallationDate: Installed on 2016-01-02 (197 days ago) InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M. ProcEnviron: PATH=(custom, no user) SHELL=/bin/bash LANG=en_GB.UTF-8 LANGUAGE=en_GB:en XDG_RUNTIME_DIR=<set> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic root=UUID=f5218c70-25bf-4eea-973c-ef3e11258a2f ro quiet splash vt.handoff=7 SourcePackage: unity UpgradeStatus: Upgraded to xenial on 2016-07-13 (5 days ago) dmi.bios.date: 02/25/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: FH dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: H61M-S2PV dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrFH:bd02/25/2013:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnH61M-S2PV:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. upstart.unity-panel-service-lockscreen.log: (unity-panel-service:17388): GLib-CRITICAL **: Source ID 4294967295 was not found when attempting to remove it version.compiz: compiz 1:0.9.12.2+16.04.20160526-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1 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 2:1.18.3-1ubuntu2.2 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 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Mon Jul 18 08:50:37 2016 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Video Bus KEYBOARD, id 7 input Power Button KEYBOARD, id 8 input PixArt USB Optical Mouse MOUSE, id 9 input AT Translated Set 2 keyboard KEYBOARD, id 10 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.18.3-1ubuntu2.2 ** Affects: unity (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 ubuntu xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1603931 Title: Show desktop hot corner doesn't activate properly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1603931/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs