[Wayland-bugs] [Bug 105203] Update to 1.10.0 makes cursor "vibrate" when using touchpad

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105203

            Bug ID: 105203
           Summary: Update to 1.10.0 makes cursor "vibrate" when using
                    touchpad
           Product: Wayland
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: libinput
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: yvan at masson-informatique.fr

Hi,

I am using Debian testing on a Dell E7440, which just switched libinput from
1.9.4-2 to 1.10.0-1. When I touch the touchpad, without moving the finger, the
cursor vibrates. It does not depend on the pressure. Cursor does not move much,
but it makes it difficult to click on precise areas.

Do not hesitate to ask if you need more information.

Best regards,
Yvan

$ xinput list
⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ xwayland-pointer:13                       id=6    [slave  pointer  (2)]
⎜   ↳ xwayland-relative-pointer:13              id=7    [slave  pointer  (2)]
⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ xwayland-keyboard:13                      id=8    [slave  keyboard (3)]

$ xinput list-props 2
Device 'Virtual core pointer':
        Device Enabled (119):   1
        Coordinate Transformation Matrix (121): 1.000000, 0.000000, 0.000000,
0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
$ xinput list-props 4
Device 'Virtual core XTEST pointer':
        Device Enabled (119):   1
        Coordinate Transformation Matrix (121): 1.000000, 0.000000, 0.000000,
0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
        XTEST Device (238):     1
$ xinput list-props 6
Device 'xwayland-pointer:13':
        Device Enabled (119):   1
        Coordinate Transformation Matrix (121): 1.000000, 0.000000, 0.000000,
0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
        Device Accel Profile (244):     0
        Device Accel Constant Deceleration (245):       1.000000
        Device Accel Adaptive Deceleration (246):       1.000000
        Device Accel Velocity Scaling (247):    10.000000

$ udevadm info /sys/class/input/event2
P: /devices/platform/i8042/serio1/input/input2/event2
N: input/event2
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/event2
E: DEVPATH=/devices/platform/i8042/serio1/input/input2/event2
E: ID_BUS=i8042
E: ID_INPUT=1
E: ID_INPUT_HEIGHT_MM=43
E: ID_INPUT_TOUCHPAD=1
E: ID_INPUT_TOUCHPAD_INTEGRATION=internal
E: ID_INPUT_WIDTH_MM=95
E: ID_PATH=platform-i8042-serio-1
E: ID_PATH_TAG=platform-i8042-serio-1
E: ID_SERIAL=noserial
E: LIBINPUT_DEVICE_GROUP=11/2/8:isa0060/serio1
E: LIBINPUT_MODEL_ALPS_TOUCHPAD=1
E: LIBINPUT_MODEL_FIRMWARE_VERSION=310
E: MAJOR=13
E: MINOR=66
E: SUBSYSTEM=input
E: USEC_INITIALIZED=50227224

$ cat /sys/class/dmi/id/modalias
dmi:bvnDellInc.:bvrA22:bd10/18/2017:svnDellInc.:pnLatitudeE7440:pvr00:rvnDellInc.:rn091TRH:rvrA00:cvnDellInc.:ct9:cvr:

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