Hi, should gksudo be able to open a GUI for another user without the need to take care about the client authentication? $ gksudo --help GKsu version 2.0.2 Usage: gksudo [-u <user>] [options] <command> [snip] --login, -l Make this a login shell. Beware this may cause problems with the Xauthority magic. Run xhost to allow the target user to open windows on your display! [snip] There's no "Xauthority magic". If I use gksudo _without_ the "login" option, there nevertheless is the need to use xhost. https://mailman.archlinux.org/pipermail/arch-general/2014-July/036833.html Regards, Ralf