Comment # 2 on bug 973755 from Jan Steen

Additional info.
I have installed another DE (Plasma 5) besides Gnome.
Edge-scrolling works on Plasma 5

Here is the output:
jsteen@linux-i7ij:~> xinput list
��� Virtual core pointer                        id=2    [master pointer  (3)]
���   ��� Virtual core XTEST pointer                  id=4    [slave  pointer  (2)]
���   ��� HP HP Link-5 micro dongle                   id=11    [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)]
    ��� HP HP Link-5 micro dongle                   id=10    [slave  keyboard
(3)]
    ��� AT Translated Set 2 keyboard                id=12    [slave  keyboard
(3)]
    ��� HP WMI hotkeys                              id=14    [slave  keyboard
(3)]
    ��� HP HP Link-5 micro dongle                   id=15    [slave  keyboard
(3)]
jsteen@linux-i7ij:~> xinput list-props 13
Device 'SynPS/2 Synaptics TouchPad':
    Device Enabled (153):    1
    Coordinate Transformation Matrix (155):    1.000000, 0.000000, 0.000000,
0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    libinput Tapping Enabled (331):    1
    libinput Tapping Enabled Default (332):    0
    libinput Tapping Drag Enabled (333):    1
    libinput Tapping Drag Enabled Default (334):    1
    libinput Tapping Drag Lock Enabled (335):    0
    libinput Tapping Drag Lock Enabled Default (336):    0
    libinput Accel Speed (314):    0.000000
    libinput Accel Speed Default (315):    0.000000
    libinput Natural Scrolling Enabled (319):    0
    libinput Natural Scrolling Enabled Default (320):    0
    libinput Send Events Modes Available (298):    1, 1
    libinput Send Events Mode Enabled (299):    0, 0
    libinput Send Events Mode Enabled Default (300):    0, 0
    libinput Left Handed Enabled (321):    0
    libinput Left Handed Enabled Default (322):    0
    libinput Scroll Methods Available (323):    1, 1, 0
    libinput Scroll Method Enabled (324):    1, 0, 0
    libinput Scroll Method Enabled Default (325):    1, 0, 0
    libinput Disable While Typing Enabled (337):    1
    libinput Disable While Typing Enabled Default (338):    1
    Device Node (301):    "/dev/input/event1"
    Device Product ID (302):    2, 7
    libinput Drag Lock Buttons (330):    <no items>
    libinput Horizonal Scroll Enabled (303):    1
jsteen@linux-i7ij:~>