Comment 6 for bug 1088768

Same here now with 13.10 64-bit but this has been going on since at least 12.10.

When this happens I've tried to toggle the "Grab Keyboard" key (Control_R by default) to see if the next keypress, a T for "Show / Hide Toolbar" does anything and also used Control_R+T simultaneously to no effect either way.

However I've found if I do a Control_R+F then the guest window does respond to going out of full screen so I can use that to work around the issue.

Also activating the "Grab Keyboard" and then (not simultaneously) pressing the letter S does in fact toggle if the guest display is scaled or not.

This issue of the toolbar disappearing could be less of a problem if the "Show/Hide Toolbar" functioned the way I imagine it should. Which is to say whenever the thing disappears if one were to press Control_R+T or even Control_R and then T it would pop back up again.

Of course what is also possible here is that the issue isn't REmmina itself but rather some other display factor, compositing, Unity who knows what, interfering with Remmina's ability to display that Toolbar when it should be done. But I'm no programmer so obviously that's a complete and utter guess on my part.