Lenovo Thinkpad Synaptics - 2 finger scroll not working.

[Sashank999]

Hello.

I am a user of Lenovo Thinkpad L412. I currently use touchpad for my daily linux use as my trusty mouse broke recently. I decided to revisit TCL as I had to install a linux distro to get Clickhouse OLAP running locally. But now I found out that 2 finger scroll and double tapping (for left click) does not work.

I have set up all the necessary things as per my choices - Firefox (thanks for the getLatest TCE), Alsa, Ice WM, etc.

From some forum and Google searches, I found a boot code:
psmouse.proto=imps
from:
https://forum.tinycorelinux.net/index.php/topic,6458.msg34363.html#msg34363
https://forum.tinycorelinux.net/index.php/topic,6982.msg36850.html#msg36850

Now this enabled the double tapping for left click. But I still cannot scroll with 2 fingers, as you would normally with a touchpad.

I will be happy to provide any information regarding my device drivers, hardware information or TCL version.

Thanks in advance.

[Rich]

Hi Sashank999
I take it you are running Xorg. What does this return:

Code: [Select]

sudo libinput list-devices

[Sashank999]

Hi Sashank999
I take it you are running Xorg. What does this return:

Code: [Select]

sudo libinput list-devices

Thank you for looking into this.

Here is what I got:

Code: [Select]

tc@box:~$ sudo libinput list-devices
Device:           Power Button
Kernel:           /dev/input/event2
Group:            1
Seat:             seat0, default
Capabilities:     keyboard
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles:   n/a
Rotation:         0.0

Device:           Video Bus
Kernel:           /dev/input/event6
Group:            2
Seat:             seat0, default
Capabilities:     keyboard
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles:   n/a
Rotation:         0.0

Device:           Sleep Button
Kernel:           /dev/input/event1
Group:            3
Seat:             seat0, default
Capabilities:     keyboard
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles:   n/a
Rotation:         0.0

Device:           AT Translated Set 2 keyboard
Kernel:           /dev/input/event3
Group:            4
Seat:             seat0, default
Capabilities:     keyboard
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      n/a
Nat.scrolling:    n/a
Middle emulation: n/a
Calibration:      n/a
Scroll methods:   none
Click methods:    none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles:   n/a
Rotation:         0.0

Device:           PS/2 Synaptics TouchPad
Kernel:           /dev/input/event5
Group:            5
Seat:             seat0, default
Capabilities:     pointer
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: disabled
Calibration:      n/a
Scroll methods:   *button
Click methods:    none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles:   flat *adaptive custom
Rotation:         0.0

Edit: My laptop has both a touchpad and the "trackpoint" thing so I don't know if they are both being recognized. Mine is a Lenovo ThinkPad L412, Intel Core i3 6th Gen, 4GB RAM.

[patrikg]

I think Thinkpads have some kernel mod's to get things working well.
If you try another live linux distro, and do lsmod to see what mod's installed.