[Wayland-bugs] [Bug 98556] elantech touchpad with libinput has jumps in the y axis

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98556

            Bug ID: 98556
           Summary: elantech touchpad with libinput has jumps in the y
                    axis
           Product: Wayland
           Version: 1.2.x
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: libinput
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: jimmyjones2 at gmx.co.uk

Downstream Fedora bug: https://bugzilla.redhat.com/show_bug.cgi?id=1222214

Originally Fedora 23 (libinput-1.2.4-4.fc23.x86_64), but have tested in Fedora
25 beta and same issue persists.

xinput list-props "ETPS/2 Elantech Touchpad"
Device 'ETPS/2 Elantech Touchpad':
        Device Enabled (136):   1
        Coordinate Transformation Matrix (138): 1.000000, 0.000000, 0.000000,
0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
        Device Accel Profile (263):     1
        Device Accel Constant Deceleration (264):       2.500000
        Device Accel Adaptive Deceleration (265):       1.000000
        Device Accel Velocity Scaling (266):    12.500000
        Synaptics Edges (267):  130, 3130, 123, 2159
        Synaptics Finger (268): 1, 1, 0
        Synaptics Tap Time (269):       180
        Synaptics Tap Move (270):       175
        Synaptics Tap Durations (271):  180, 100, 100
        Synaptics ClickPad (272):       1
        Synaptics Middle Button Timeout (273):  0
        Synaptics Two-Finger Pressure (274):    282
        Synaptics Two-Finger Width (275):       7
        Synaptics Scrolling Distance (276):     79, 79
        Synaptics Edge Scrolling (277): 0, 0, 0
        Synaptics Two-Finger Scrolling (278):   1, 1
        Synaptics Move Speed (279):     1.000000, 1.750000, 0.050264, 0.000000
        Synaptics Off (280):    2
        Synaptics Locked Drags (281):   0
        Synaptics Locked Drags Timeout (282):   5000
        Synaptics Tap Action (283):     0, 0, 0, 0, 1, 3, 2
        Synaptics Click Action (284):   1, 3, 2
        Synaptics Circular Scrolling (285):     0
        Synaptics Circular Scrolling Distance (286):    0.100000
        Synaptics Circular Scrolling Trigger (287):     0
        Synaptics Circular Pad (288):   0
        Synaptics Palm Detection (289): 0
        Synaptics Palm Dimensions (290):        10, 200
        Synaptics Coasting Speed (291): 20.000000, 50.000000
        Synaptics Pressure Motion (292):        30, 160
        Synaptics Pressure Motion Factor (293): 1.000000, 1.000000
        Synaptics Grab Event Device (294):      0
        Synaptics Gestures (295):       1
        Synaptics Capabilities (296):   1, 0, 0, 1, 1, 1, 1
        Synaptics Pad Resolution (297): 32, 32
        Synaptics Area (298):   0, 0, 0, 0
        Synaptics Soft Button Areas (299):      1630, 0, 1871, 0, 0, 0, 0, 0
        Synaptics Noise Cancellation (300):     19, 19
        Device Product ID (256):        2, 14
        Device Node (257):      "/dev/input/event4"

udevadm info /sys/class/input/event4
P: /devices/platform/i8042/serio1/input/input5/event4
N: input/event4
S: input/by-path/platform-i8042-serio-1-event-mouse
E: DEVLINKS=/dev/input/by-path/platform-i8042-serio-1-event-mouse
E: DEVNAME=/dev/input/event4
E: DEVPATH=/devices/platform/i8042/serio1/input/input5/event4
E: ID_INPUT=1
E: ID_INPUT_HEIGHT_MM=71
E: ID_INPUT_TOUCHPAD=1
E: ID_INPUT_WIDTH_MM=101
E: ID_PATH=platform-i8042-serio-1
E: ID_PATH_TAG=platform-i8042-serio-1
E: ID_SERIAL=noserial
E: LIBINPUT_ATTR_RESOLUTION_HINT=31x31
E: LIBINPUT_DEVICE_GROUP=11/2/e/0:isa0060/serio1
E: LIBINPUT_MODEL_ELANTECH_TOUCHPAD=1
E: MAJOR=13
E: MINOR=68
E: SUBSYSTEM=input
E: USEC_INITIALIZED=6441988

Model: Samsung 700Z5A

cat /sys/class/dmi/id/modalias
dmi:bvnPhoenixTechnologiesLtd.:bvr15FD:bd11/06/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z3A/700Z4A/700Z5A/700Z5B:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn700Z3A/700Z4A/700Z5A/700Z5B:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:

Physical dimensions:

76mm x 107mm

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