Libinput 3 finger gestures

As I want to get 3-finger (or even 4-finger) gestures running under Gnome (Fedora 25, Xorg), I've installed the libinput drivers and libinput-gestures (https://github.com/bulletmark/libinput-gestures) . When trying to debug why 3-finger swipes aren't working, I noticed that libinput-gestures -r does not show anything done with more than two fingers. Does anybody have an idea how to get this working? The touchpad does support multitouch with at least 3 fingers (I've used it regularly under Windows). System I use: Dell XPS 15 L501x xinput-output: $ xinput ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ SynPS/2 Synaptics TouchPad id=13 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Video Bus id=8 [slave keyboard (3)] ↳ Power Button id=9 [slave keyboard (3)] ↳ Sleep Button id=10 [slave keyboard (3)] ↳ Laptop_Integrated_Webcam_2HDM id=11 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=12 [slave keyboard (3)] ↳ Dell WMI hotkeys id=14 [slave keyboard (3)] Properties: $ xinput list-props 13 Device 'SynPS/2 Synaptics TouchPad': Device Enabled (152): 1 Coordinate Transformation Matrix (154): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000 libinput Tapping Enabled (290): 0 libinput Tapping Enabled Default (291): 0 libinput Tapping Drag Enabled (292): 1 libinput Tapping Drag Enabled Default (293): 1 libinput Tapping Drag Lock Enabled (294): 0 libinput Tapping Drag Lock Enabled Default (295): 0 libinput Tapping Button Mapping Enabled (296): 1, 0 libinput Tapping Button Mapping Default (297): 1, 0 libinput Accel Speed (298): 0.000000 libinput Accel Speed Default (299): 0.000000 libinput Natural Scrolling Enabled (300): 1 libinput Natural Scrolling Enabled Default (301): 0 libinput Send Events Modes Available (275): 1, 1 libinput Send Events Mode Enabled (276): 0, 0 libinput Send Events Mode Enabled Default (277): 0, 0 libinput Left Handed Enabled (302): 0 libinput Left Handed Enabled Default (303): 0 libinput Scroll Methods Available (304): 1, 1, 0 libinput Scroll Method Enabled (305): 1, 0, 0 libinput Scroll Method Enabled Default (306): 1, 0, 0 libinput Disable While Typing Enabled (307): 1 libinput Disable While Typing Enabled Default (308): 1 Device Node (278): "/dev/input/event5" Device Product ID (279): 2, 7 libinput Drag Lock Buttons (309): libinput Horizontal Scroll Enabled (310): 1