Hardware: Dell XPS 15 9550 (4K touchscreen) with DisplayLink box
Software: Fedora 23, displaylink driver 1.0.335, video driver xorg-x11-drv-intel-2.99.917-16.20150729
I have searched for similar issues around the web but only found an old Firefox-related Ubuntu issue on Launchpad, so here's my question.
I have two external monitors connected to a diplaylink box which is connected to my laptop. Whenever I want to use a (context) menu of an app that is running on one of the external monitors, it shows up either on the built-in laptop display (Gtk and Qt apps) or not at all (Firefox). Only Chromium menus seem to show up in the right place. I have tried turning off the built-in display in the Gnome settings but that didn't solve the problem.
Does anyone have an idea of how to configure my box in such a way that menus will show up in the right position?