Subscription date : 24 January 2009
Messages : 12573
I saw one post where a similar, but different, issue was blamed on Compiz.Is it this bug? https://bugs.launchpad.net/ubuntu/+source/cairo-dock-plug-ins/+bug/1311189
Compiz should inform the X server that it is no longer displaying only the desktop without any window on top of it. Due to this bug, our Show Desktop applet is no longer notified when the window manager (here it's Compiz) stops showing only the desktop.
But Show Desktop works fine in Ubuntu using Compiz, including using the switcher. Is it the Show Desktop plugin in Unity's dock? If yes, Unity is a plugin of Compiz and I think it directly uses informations from Compiz without contacting the X server.