I just read that there is a workaround for this issue: increasing the panel size from 24 pixel to 26 pixel.
So I started a third experiment: 1) I increased the panel size to 26 pixel. 2) I start an maximized application "Firefox" (one that opens full screen on my computer) --> icon is shown 3) I drag and drop the panel with the workspace switcher on it from "Bottom" to "Top" (the size of the workspace switcher doesn't change, of course) --> icon is still shown 4) I drag and drop the panel with the workspace switcher on it from "Top" to "Left" (which decreases the workspace switcher) --> icon disappears as was expected 5) I drag and drop the panel with the workspace switcher on it from "Left" to "Botton" (original position) --> icon is shown again! So it seems that this workaround really works. If it doesn't in the long run I will add a comment to this bug. -- icons in workspace switcher https://launchpad.net/bugs/51800 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs