GTK3 ComboboxText on the touch screen

Question

I have a problem with the above widgets on the touch screen (Elo). The list of options is displayed only when the widget is clicked. This is a different behavior with the fact that the mouse is a pointer. After selecting with the left mouse button a list of parameters will appear and waiting for the user to select.

I use Perl 5.22 and GTK3 (3.18.2) and the Perl Gtk3 wrapper library (0.025).

Answer 1

I think this is probably due to this error (which has not yet been fixed) in GTK3:

https://bugzilla.gnome.org/show_bug.cgi?id=333470

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