GNOME Bugzilla – Bug 788651
Tweak tool Middle-click option "Lower" not respected
Last modified: 2017-10-08 08:34:50 UTC
I don't know what part of the gnome ecosystem is responsible for this bug, but since it does not affect all applications it seems the applications themselves play a role, so I'm filing this bug against evince. Maybe it can be refiled if an expert knows what causes the problem. The gnome tweak tool offers the option of enabling a mouse behaviour that lowers a window when the title bar is middle-clicked. When enabled, the feature does not work on evince, nor on gnome-terminal. It does work on firefox.
Not an evince bug if it also affects g-t. Probably to do with CSD; it's gtk+ that handles this (although the gtkwindow.c code does seem to handle "lower"). In any case, -> gtk+.
*** This bug has been marked as a duplicate of bug 772909 ***