[Wayland-bugs] [Bug 93504] Reduce/remove two-finger scrolling threshold

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93504

--- Comment #2 from Cyril B. <lagoon42 at gmail.com> ---
# touchpad-edge-detector /dev/input/event9
Touchpad DLL0704:01 06CB:76AD Touchpad on /dev/input/event9
Move one finger around the touchpad to detect the actual edges
Kernel says:    x [0..1216], y [0..680]
Touchpad sends: x [0..1216], y [0..680] |\-\
^C

Touchpad size as listed by the kernel: 101x56mm
Calculate resolution as:
        x axis: 1216/<width in mm>
        y axis: 680/<height in mm>

Suggested udev rule:
# <Laptop model description goes here>
evdev:name:DLL0704:01 06CB:76AD
Touchpad:dmi:bvnDellInc.:bvr1.1.7:bd11/27/2015:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:*
 EVDEV_ABS_00=0:1216:<x resolution>
 EVDEV_ABS_01=0:680:<y resolution>
 EVDEV_ABS_35=0:1216:<x resolution>
 EVDEV_ABS_36=0:680:<y resolution>

# evemu-describe /dev/input/event9
# EVEMU 1.3
# Kernel: 4.4.0-1-ARCH
# DMI:
dmi:bvnDellInc.:bvr1.1.7:bd11/27/2015:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
# Input device name: "DLL0704:01 06CB:76AD Touchpad"
# Input device ID: bus 0x18 vendor 0x6cb product 0x76ad version 0x100
# Supported events:
#   Event type 0 (EV_SYN)
#     Event code 0 (SYN_REPORT)
#     Event code 1 (SYN_CONFIG)
#     Event code 2 (SYN_MT_REPORT)
#     Event code 3 (SYN_DROPPED)
#     Event code 4 ((null))
#     Event code 5 ((null))
#     Event code 6 ((null))
#     Event code 7 ((null))
#     Event code 8 ((null))
#     Event code 9 ((null))
#     Event code 10 ((null))
#     Event code 11 ((null))
#     Event code 12 ((null))
#     Event code 13 ((null))
#     Event code 14 ((null))
#   Event type 1 (EV_KEY)
#     Event code 272 (BTN_LEFT)
#     Event code 325 (BTN_TOOL_FINGER)
#     Event code 330 (BTN_TOUCH)
#     Event code 333 (BTN_TOOL_DOUBLETAP)
#     Event code 334 (BTN_TOOL_TRIPLETAP)
#   Event type 3 (EV_ABS)
#     Event code 0 (ABS_X)
#       Value    991
#       Min        0
#       Max     1216
#       Fuzz       0
#       Flat       0
#       Resolution 12
#     Event code 1 (ABS_Y)
#       Value    180
#       Min        0
#       Max      680
#       Fuzz       0
#       Flat       0
#       Resolution 12
#     Event code 47 (ABS_MT_SLOT)
#       Value      2
#       Min        0
#       Max        2
#       Fuzz       0
#       Flat       0
#       Resolution 0
#     Event code 53 (ABS_MT_POSITION_X)
#       Value      0
#       Min        0
#       Max     1216
#       Fuzz       0
#       Flat       0
#       Resolution 12
#     Event code 54 (ABS_MT_POSITION_Y)
#       Value      0
#       Min        0
#       Max      680
#       Fuzz       0
#       Flat       0
#       Resolution 12
#     Event code 57 (ABS_MT_TRACKING_ID)
#       Value      0
#       Min        0
#       Max    65535
#       Fuzz       0
#       Flat       0
#       Resolution 0
# Properties:
#   Property  type 0 (INPUT_PROP_POINTER)
#   Property  type 2 (INPUT_PROP_BUTTONPAD)
N: DLL0704:01 06CB:76AD Touchpad
I: 0018 06cb 76ad 0100
P: 05 00 00 00 00 00 00 00
B: 00 0b 00 00 00 00 00 00 00
B: 01 00 00 00 00 00 00 00 00
B: 01 00 00 00 00 00 00 00 00
B: 01 00 00 00 00 00 00 00 00
B: 01 00 00 00 00 00 00 00 00
B: 01 00 00 01 00 00 00 00 00
B: 01 20 64 00 00 00 00 00 00
B: 01 00 00 00 00 00 00 00 00
B: 01 00 00 00 00 00 00 00 00
B: 01 00 00 00 00 00 00 00 00
B: 01 00 00 00 00 00 00 00 00
B: 01 00 00 00 00 00 00 00 00
B: 01 00 00 00 00 00 00 00 00
B: 02 00 00 00 00 00 00 00 00
B: 03 03 00 00 00 00 80 60 02
B: 04 00 00 00 00 00 00 00 00
B: 05 00 00 00 00 00 00 00 00
B: 11 00 00 00 00 00 00 00 00
B: 12 00 00 00 00 00 00 00 00
B: 14 00 00 00 00 00 00 00 00
B: 15 00 00 00 00 00 00 00 00
B: 15 00 00 00 00 00 00 00 00
A: 00 0 1216 0 0 12
A: 01 0 680 0 0 12
A: 2f 0 2 0 0 0
A: 35 0 1216 0 0 12
A: 36 0 680 0 0 12
A: 39 0 65535 0 0 0

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