Public bug reported:
When scrolling anywhere using 2 fingers the scroll bounces back if
fingers are lifted up from touchpad. Soft finger point muscles have some
flex to them and I strongly believe this causes the scroll bounce back.
Easily repeated to both directions. In bounce scroll rapidly moves to
the opposite direction of where user wanted to scroll when lifting up
fingers.
Hardware details:
xinput --list
WARNING: running xinput against an Xwayland server. See the xinput man page for
details.
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ xwayland-pointer:16 id=6 [slave pointer (2)]
⎜ ↳ xwayland-relative-pointer:16 id=7 [slave pointer (2)]
⎜ ↳ xwayland-pointer-gestures:16 id=8 [slave pointer (2)]
⎜ ↳ xwayland-touch:16 id=10 [slave pointer (2)]
⎜ ↳ xwayland-tablet stylus:16 id=11 [slave pointer (2)]
⎜ ↳ xwayland-tablet eraser:16 id=12 [slave pointer (2)]
⎜ ↳ xwayland-tablet cursor:16 id=13 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ xwayland-keyboard:16 id=9 [slave keyboard (3)]
lshw
*-input:0
product: Sleep Button
physical id: 2
logical name: input0
logical name: /dev/input/event0
capabilities: platform
*-input:1
product: Lid Switch
physical id: 3
logical name: input1
logical name: /dev/input/event1
capabilities: platform
*-input:2
product: Intel HID events
physical id: 4
logical name: input17
logical name: /dev/input/event9
capabilities: platform
*-input:3
product: ThinkPad Extra Buttons
physical id: 5
logical name: input18
logical name: /dev/input/event10
capabilities: platform
*-input:4
product: SYNA8007:00 06CB:CD8C Mouse
physical id: 6
logical name: input19
logical name: /dev/input/event4
logical name: /dev/input/mouse0
capabilities: i2c
*-input:5
product: Power Button
physical id: 7
logical name: input2
logical name: /dev/input/event2
capabilities: platform
*-input:6
product: SYNA8007:00 06CB:CD8C Touchpad
physical id: 8
logical name: input20
logical name: /dev/input/event5
logical name: /dev/input/mouse1
capabilities: i2c
*-input:7
product: Video Bus
physical id: 9
logical name: input22
logical name: /dev/input/event11
capabilities: platform
*-input:8
product: sof-hda-dsp Mic
physical id: a
logical name: input23
logical name: /dev/input/event12
*-input:9
product: sof-hda-dsp Headphone
physical id: b
logical name: input24
logical name: /dev/input/event13
*-input:10
product: sof-hda-dsp HDMI/DP,pcm=3
physical id: c
logical name: input25
logical name: /dev/input/event14
*-input:11
product: sof-hda-dsp HDMI/DP,pcm=4
physical id: d
logical name: input26
logical name: /dev/input/event15
*-input:12
product: sof-hda-dsp HDMI/DP,pcm=5
physical id: e
logical name: input27
logical name: /dev/input/event16
*-input:13
product: AT Translated Set 2 keyboard
physical id: f
logical name: input3
logical name: /dev/input/event3
logical name: input3::capslock
logical name: input3::numlock
logical name: input3::scrolllock
capabilities: i8042
*-input:14
product: TPPS/2 ALPS TrackPoint
physical id: 10
logical name: input5
logical name: /dev/input/event6
logical name: /dev/input/mouse2
capabilities: i8042
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "lspci -vnvn"
https://bugs.launchpad.net/bugs/2061376/+attachment/5765602/+files/lspci-vnvn.log
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https://bugs.launchpad.net/bugs/2061376
Title:
Touchpad scroll bounces back 22.04.4 Thinkpad X1 Yoga Gen5
Status in linux package in Ubuntu:
New
Bug description:
When scrolling anywhere using 2 fingers the scroll bounces back if
fingers are lifted up from touchpad. Soft finger point muscles have
some flex to them and I strongly believe this causes the scroll bounce
back. Easily repeated to both directions. In bounce scroll rapidly
moves to the opposite direction of where user wanted to scroll when
lifting up fingers.
Hardware details:
xinput --list
WARNING: running xinput against an Xwayland server. See the xinput man page
for details.
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer
(2)]
⎜ ↳ xwayland-pointer:16 id=6 [slave pointer
(2)]
⎜ ↳ xwayland-relative-pointer:16 id=7 [slave pointer
(2)]
⎜ ↳ xwayland-pointer-gestures:16 id=8 [slave pointer
(2)]
⎜ ↳ xwayland-touch:16 id=10 [slave pointer
(2)]
⎜ ↳ xwayland-tablet stylus:16 id=11 [slave pointer
(2)]
⎜ ↳ xwayland-tablet eraser:16 id=12 [slave pointer
(2)]
⎜ ↳ xwayland-tablet cursor:16 id=13 [slave pointer
(2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave
keyboard (3)]
↳ xwayland-keyboard:16 id=9 [slave
keyboard (3)]
lshw
*-input:0
product: Sleep Button
physical id: 2
logical name: input0
logical name: /dev/input/event0
capabilities: platform
*-input:1
product: Lid Switch
physical id: 3
logical name: input1
logical name: /dev/input/event1
capabilities: platform
*-input:2
product: Intel HID events
physical id: 4
logical name: input17
logical name: /dev/input/event9
capabilities: platform
*-input:3
product: ThinkPad Extra Buttons
physical id: 5
logical name: input18
logical name: /dev/input/event10
capabilities: platform
*-input:4
product: SYNA8007:00 06CB:CD8C Mouse
physical id: 6
logical name: input19
logical name: /dev/input/event4
logical name: /dev/input/mouse0
capabilities: i2c
*-input:5
product: Power Button
physical id: 7
logical name: input2
logical name: /dev/input/event2
capabilities: platform
*-input:6
product: SYNA8007:00 06CB:CD8C Touchpad
physical id: 8
logical name: input20
logical name: /dev/input/event5
logical name: /dev/input/mouse1
capabilities: i2c
*-input:7
product: Video Bus
physical id: 9
logical name: input22
logical name: /dev/input/event11
capabilities: platform
*-input:8
product: sof-hda-dsp Mic
physical id: a
logical name: input23
logical name: /dev/input/event12
*-input:9
product: sof-hda-dsp Headphone
physical id: b
logical name: input24
logical name: /dev/input/event13
*-input:10
product: sof-hda-dsp HDMI/DP,pcm=3
physical id: c
logical name: input25
logical name: /dev/input/event14
*-input:11
product: sof-hda-dsp HDMI/DP,pcm=4
physical id: d
logical name: input26
logical name: /dev/input/event15
*-input:12
product: sof-hda-dsp HDMI/DP,pcm=5
physical id: e
logical name: input27
logical name: /dev/input/event16
*-input:13
product: AT Translated Set 2 keyboard
physical id: f
logical name: input3
logical name: /dev/input/event3
logical name: input3::capslock
logical name: input3::numlock
logical name: input3::scrolllock
capabilities: i8042
*-input:14
product: TPPS/2 ALPS TrackPoint
physical id: 10
logical name: input5
logical name: /dev/input/event6
logical name: /dev/input/mouse2
capabilities: i8042
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