[Description]

Simply, when I "tap-to-click" fast enough, everything works as expected,
however, when I tap slowly, it won't register as a click.

See below, it seems as if libinput thinks it is a "click-and-hold".

Note, the slow tap is really not that slow, say sub 200ms, also, the exact
behaviour works under version 1.5.4

Attached is a recordings using evemu to reproduce the behaviour.

[Command I ran]

sudo libinput-debug-events --enable-tap --verbose

[Simplified events]

[[When the tap is missed]]

tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
tap state: TAP_STATE_TOUCH → TAP_EVENT_TIMEOUT → TAP_STATE_HOLD
tap state: TAP_STATE_HOLD → TAP_EVENT_RELEASE → TAP_STATE_IDLE

[[When the tap is registered]]

tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
tap state: TAP_STATE_TOUCH → TAP_EVENT_RELEASE → TAP_STATE_TAPPED
 event15  POINTER_BUTTON   +66.16s	BTN_LEFT (272) pressed, seat count: 1
tap state: TAP_STATE_TAPPED → TAP_EVENT_TIMEOUT → TAP_STATE_IDLE
 event15  POINTER_BUTTON   +66.39s	BTN_LEFT (272) released, seat count: 0

[Below is a sample of some events]

button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_HOLD → TAP_EVENT_RELEASE → TAP_STATE_IDLE
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_TOUCH → TAP_EVENT_RELEASE → TAP_STATE_TAPPED
 event15  POINTER_BUTTON    +7.79s	BTN_LEFT (272) pressed, seat count: 1
tap state: TAP_STATE_TAPPED → TAP_EVENT_TIMEOUT → TAP_STATE_IDLE
 event15  POINTER_BUTTON    +8.05s	BTN_LEFT (272) released, seat count: 0
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
tap state: TAP_STATE_TOUCH → TAP_EVENT_TIMEOUT → TAP_STATE_HOLD
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_HOLD → TAP_EVENT_RELEASE → TAP_STATE_IDLE
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_TOUCH → TAP_EVENT_RELEASE → TAP_STATE_TAPPED
 event15  POINTER_BUTTON   +18.04s	BTN_LEFT (272) pressed, seat count: 1
tap state: TAP_STATE_TAPPED → TAP_EVENT_TIMEOUT → TAP_STATE_IDLE
 event15  POINTER_BUTTON   +18.28s	BTN_LEFT (272) released, seat count: 0
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_TOUCH → TAP_EVENT_RELEASE → TAP_STATE_TAPPED
 event15  POINTER_BUTTON   +26.10s	BTN_LEFT (272) pressed, seat count: 1
tap state: TAP_STATE_TAPPED → TAP_EVENT_TIMEOUT → TAP_STATE_IDLE
 event15  POINTER_BUTTON   +26.34s	BTN_LEFT (272) released, seat count: 0
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_TOUCH → TAP_EVENT_RELEASE → TAP_STATE_TAPPED
 event15  POINTER_BUTTON   +27.58s	BTN_LEFT (272) pressed, seat count: 1
tap state: TAP_STATE_TAPPED → TAP_EVENT_TIMEOUT → TAP_STATE_IDLE
 event15  POINTER_BUTTON   +27.81s	BTN_LEFT (272) released, seat count: 0
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_TOUCH → TAP_EVENT_RELEASE → TAP_STATE_TAPPED
 event15  POINTER_BUTTON   +28.74s	BTN_LEFT (272) pressed, seat count: 1
tap state: TAP_STATE_TAPPED → TAP_EVENT_TIMEOUT → TAP_STATE_IDLE
 event15  POINTER_BUTTON   +28.99s	BTN_LEFT (272) released, seat count: 0
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_TOUCH → TAP_EVENT_RELEASE → TAP_STATE_TAPPED
 event15  POINTER_BUTTON   +36.64s	BTN_LEFT (272) pressed, seat count: 1
tap state: TAP_STATE_TAPPED → TAP_EVENT_TIMEOUT → TAP_STATE_IDLE
 event15  POINTER_BUTTON   +36.88s	BTN_LEFT (272) released, seat count: 0
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_TOUCH → TAP_EVENT_RELEASE → TAP_STATE_TAPPED
 event15  POINTER_BUTTON   +42.05s	BTN_LEFT (272) pressed, seat count: 1
tap state: TAP_STATE_TAPPED → TAP_EVENT_TIMEOUT → TAP_STATE_IDLE
 event15  POINTER_BUTTON   +42.31s	BTN_LEFT (272) released, seat count: 0
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_TOUCH → TAP_EVENT_RELEASE → TAP_STATE_TAPPED
 event15  POINTER_BUTTON   +44.95s	BTN_LEFT (272) pressed, seat count: 1
tap state: TAP_STATE_TAPPED → TAP_EVENT_TIMEOUT → TAP_STATE_IDLE
 event15  POINTER_BUTTON   +45.21s	BTN_LEFT (272) released, seat count: 0
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_TOUCH → TAP_EVENT_RELEASE → TAP_STATE_TAPPED
 event15  POINTER_BUTTON   +46.56s	BTN_LEFT (272) pressed, seat count: 1
tap state: TAP_STATE_TAPPED → TAP_EVENT_TIMEOUT → TAP_STATE_IDLE
 event15  POINTER_BUTTON   +46.77s	BTN_LEFT (272) released, seat count: 0
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
tap state: TAP_STATE_TOUCH → TAP_EVENT_TIMEOUT → TAP_STATE_HOLD
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_HOLD → TAP_EVENT_RELEASE → TAP_STATE_IDLE
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
tap state: TAP_STATE_TOUCH → TAP_EVENT_TIMEOUT → TAP_STATE_HOLD
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_HOLD → TAP_EVENT_RELEASE → TAP_STATE_IDLE
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
tap state: TAP_STATE_TOUCH → TAP_EVENT_TIMEOUT → TAP_STATE_HOLD
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_HOLD → TAP_EVENT_RELEASE → TAP_STATE_IDLE
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
tap state: TAP_STATE_TOUCH → TAP_EVENT_TIMEOUT → TAP_STATE_HOLD
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_HOLD → TAP_EVENT_RELEASE → TAP_STATE_IDLE
thumb state: THUMB_STATE_MAYBE → THUMB_STATE_NO
button state: from BUTTON_STATE_NONE, event BUTTON_EVENT_IN_AREA to BUTTON_STATE_AREA
tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE
tap state: TAP_STATE_TOUCH → TAP_EVENT_RELEASE → TAP_STATE_TAPPED
 event15  POINTER_BUTTON   +66.16s	BTN_LEFT (272) pressed, seat count: 1
tap state: TAP_STATE_TAPPED → TAP_EVENT_TIMEOUT → TAP_STATE_IDLE
 event15  POINTER_BUTTON   +66.39s	BTN_LEFT (272) released, seat count: 0

[Initial log]

input device 'Power Button', /dev/input/event1 is tagged by udev as: Keyboard
input device 'Power Button', /dev/input/event1 is a keyboard
input device 'Power Button', /dev/input/event0 is tagged by udev as: Keyboard
input device 'Power Button', /dev/input/event0 is a keyboard
input device 'HDA Intel HDMI HDMI/DP,pcm=3', /dev/input/event8 not tagged as input device
not using input device '/dev/input/event8'.
input device 'HDA Intel HDMI HDMI/DP,pcm=7', /dev/input/event10 not tagged as input device
not using input device '/dev/input/event10'.
input device 'HDA Intel HDMI HDMI/DP,pcm=8', /dev/input/event11 not tagged as input device
not using input device '/dev/input/event11'.
input device 'HID 046a:010d', /dev/input/event7 is tagged by udev as: Keyboard
input device 'HID 046a:010d', /dev/input/event7 is a keyboard
input device 'HID 046a:010d', /dev/input/event12 is tagged by udev as: Keyboard
input device 'HID 046a:010d', /dev/input/event12 is a keyboard
input device 'Logitech G500s Laser Gaming Mouse', /dev/input/event13 is tagged by udev as: Mouse
Device 'Logitech G500s Laser Gaming Mouse' set to 800 DPI
input device 'Logitech G500s Laser Gaming Mouse', /dev/input/event13 is a pointer caps
input device 'Logitech G500s Laser Gaming Mouse', /dev/input/event14 is tagged by udev as: Keyboard
input device 'Logitech G500s Laser Gaming Mouse', /dev/input/event14 is a keyboard
event15: tagged as LIBINPUT_MODEL_APPLE_TOUCHPAD
input device 'Apple Wireless Trackpad', /dev/input/event15 is tagged by udev as: Touchpad
thumb: enabled thumb detection on 'Apple Wireless Trackpad'
input device 'Apple Wireless Trackpad', /dev/input/event15 is a touchpad
input device 'HDA Intel PCH Mic', /dev/input/event2 not tagged as input device
not using input device '/dev/input/event2'.
input device 'HDA Intel PCH Line', /dev/input/event3 not tagged as input device
not using input device '/dev/input/event3'.
input device 'HDA Intel PCH Line Out', /dev/input/event4 not tagged as input device
not using input device '/dev/input/event4'.
input device 'HDA Intel PCH Front Headphone', /dev/input/event5 not tagged as input device
not using input device '/dev/input/event5'.
input device 'PC Speaker', /dev/input/event6 not tagged as input device
not using input device '/dev/input/event6'.
input device 'HP WMI hotkeys', /dev/input/event9 is tagged by udev as: Keyboard
input device 'HP WMI hotkeys', /dev/input/event9 is a keyboard
-event1   DEVICE_ADDED     Power Button                      seat0 default group1  cap:k
-event0   DEVICE_ADDED     Power Button                      seat0 default group2  cap:k
-event7   DEVICE_ADDED     HID 046a:010d                     seat0 default group3  cap:k
-event12  DEVICE_ADDED     HID 046a:010d                     seat0 default group3  cap:kp scroll-nat
-event13  DEVICE_ADDED     Logitech G500s Laser Gaming Mouse seat0 default group4  cap:p left scroll-nat scroll-button
-event14  DEVICE_ADDED     Logitech G500s Laser Gaming Mouse seat0 default group4  cap:kp scroll-nat
-event15  DEVICE_ADDED     Apple Wireless Trackpad           seat0 default group5  cap:pg  size 132x112mm tap(dl off) left scroll-nat scroll-2fg-edge click-buttonareas-clickfinger
-event9   DEVICE_ADDED     HP WMI hotkeys                    seat0 default group6  cap:k