Thanks for your quick response. Here are the steps to reproduce the problem, I also attach screenshots for the sake of clarity.
1. I'll begin with clean desktop. No application is opened. Show Desktop launcher is colored purple. See Screenshot1.png 2. Next, I open Google Chrome. See Screenshot2.png 3. Click Show Desktop icon, now Google Chrome is minimized, and the Show Desktop launcher turns black. See Screenshot3. So far so good. 4. Click the Google Chrome launcher, Google Chrome reappeared. But now, the Show Desktop launcher still in black color and from now on clicking Show Desktop launcher won't minimize all opened program as it is supposed to do. ** Attachment added: "Screenshot1.png" https://bugs.launchpad.net/ubuntu/+source/cairo-dock/+bug/1311189/+attachment/4094442/+files/Screenshot1.png -- You received this bug notification because you are a member of Cairo- Dock Devs, which is subscribed to cairo-dock in Ubuntu. https://bugs.launchpad.net/bugs/1311189 Title: Cairo-dock buggy show desktop Status in “cairo-dock” package in Ubuntu: Incomplete Bug description: When application windows active, show desktop is still black and clicking it does not minimize all windows as it is supposed to do. Ubuntu version: 14.04 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: cairo-dock 3.3.99.beta1.2.really.3.3.2-0ubuntu2 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic i686 ApportVersion: 2.14.1-0ubuntu3 Architecture: i386 CompositingMetacity: No value set for `/apps/metacity/general/compositing_manager' CurrentDesktop: Unity Date: Tue Apr 22 22:37:58 2014 InstallationDate: Installed on 2014-04-22 (0 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140417) PackageArchitecture: all PciDisplay: 00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0152] (rev 09) (prog-if 00 [VGA controller]) RelatedPackageVersions: xserver-xorg 1:7.7+1ubuntu8 libgl1-mesa-glx 10.1.0-4ubuntu5 libdrm2 2.4.52-1 xserver-xorg-video-intel 2:2.99.910-0ubuntu1 xserver-xorg-video-ati 1:7.3.0-1ubuntu3 SourcePackage: cairo-dock UpgradeStatus: No upgrade log present (probably fresh install) WM: No value set for `/desktop/gnome/applications/window_manager/current' glxinfo: Error: [Errno 2] No such file or directory: 'glxinfo' system: distro = Ubuntu, architecture = i686, kernel = 3.13.0-24-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cairo-dock/+bug/1311189/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~cairo-dock-team Post to : [email protected] Unsubscribe : https://launchpad.net/~cairo-dock-team More help : https://help.launchpad.net/ListHelp

