Not sure what causes this but I dont have that issue in other desktop environments: https://drive.google.com/open?id=0B_2_dsXrefR-OW1fMXdzZVp4LTA
At least the touch is responsive ;) I think xfce is never tested in touchscreen environment… :)
ok i got it fixed by adding: XfdesktopIconView.view, XfdesktopIconView.view:backdrop{ -GtkWidget-window-dragging:false;} to my ~/.config/gtk-3.0/gtk.css maybe that setting should be forced by xfdesktop?
I can't test as I don't have any touch device. But GtkWidget-window-dragging seems to be "false" by default: https://developer.gnome.org/gtk3/stable/GtkWidget.html#GtkWidget--s-window-dragging Is your gtk theme set it to true ? :o
Closing this report for now. If you find out why the property is set to 'true', please let us know.