Arch Linux

gowthamreddysomala

Member

Registered: 2025-11-12

Posts: 7

[Touchpad] Tap-to-click and two-finger right-click only work randomly

Hi everyone,

I’m running Arch Linux on a Lenovo ThinkPad T14 Gen 1 (Intel i5-10210U) and facing a strange issue with the Synaptics TM3471-020 touchpad under the psmouse kernel module.

The touchpad is always detected at boot.

Cursor movement and two-finger scrolling always work.

Tap-to-click and two-finger tap for right-click only work sometimes.

Reloading the driver fixes it (may take only one reload sometimes but mostly it takes multiple reloads to works ):

sudo modprobe -r psmouse && sudo modprobe psmouse

After reloading, all features (including taps) start working perfectly.

This happens intermittently on every reboot — it seems like psmouse sometimes loads the device in generic PS/2 mode instead of full Synaptics mode.

archaea

Member

Registered: 2025-10-20

Posts: 20

Re: [Touchpad] Tap-to-click and two-finger right-click only work randomly

it seems like psmouse sometimes loads the device in generic PS/2 mode instead of full Synaptics mode.

Please confirm this by running the following command both before reloading the driver (while the issue is ongoing) and after (while the touchpad is working correctly):

for f in /sys/module/psmouse/parameters/*;do echo "*** $f ***";cat "$f";done

If there are differences, you could try creating a file in /etc/modprobe.d to specifically set the "good" options, see for more info

man modprobe.d
modinfo psmouse

gowthamreddysomala

Member

Registered: 2025-11-12

Posts: 7

Re: [Touchpad] Tap-to-click and two-finger right-click only work randomly

I did it and I see no difference :

[gowthamreddy@gowthamreddy ~]$ for f in /sys/module/psmouse/parameters/*;do echo "*** $f ***";cat "$f";done
*** /sys/module/psmouse/parameters/a4tech_workaround ***
N
*** /sys/module/psmouse/parameters/elantech_smbus ***
-1
*** /sys/module/psmouse/parameters/proto ***
auto
*** /sys/module/psmouse/parameters/rate ***
100
*** /sys/module/psmouse/parameters/resetafter ***
5
*** /sys/module/psmouse/parameters/resolution ***
200
*** /sys/module/psmouse/parameters/resync_time ***
0
*** /sys/module/psmouse/parameters/smartscroll ***
Y
*** /sys/module/psmouse/parameters/synaptics_intertouch ***
1
[gowthamreddy@gowthamreddy ~]$ fixmouse.sh
[gowthamreddy@gowthamreddy ~]$ for f in /sys/module/psmouse/parameters/*;do echo "*** $f ***";cat "$f";done
*** /sys/module/psmouse/parameters/a4tech_workaround ***
N
*** /sys/module/psmouse/parameters/elantech_smbus ***
-1
*** /sys/module/psmouse/parameters/proto ***
auto
*** /sys/module/psmouse/parameters/rate ***
100
*** /sys/module/psmouse/parameters/resetafter ***
5
*** /sys/module/psmouse/parameters/resolution ***
200
*** /sys/module/psmouse/parameters/resync_time ***
0
*** /sys/module/psmouse/parameters/smartscroll ***
Y
*** /sys/module/psmouse/parameters/synaptics_intertouch ***
1
[gowthamreddy@gowthamreddy ~]$

dazoe

Member

Registered: 2015-06-21

Posts: 3

Re: [Touchpad] Tap-to-click and two-finger right-click only work randomly

I'm having trouble with my touchpad on a T15 using the same touchpad. It feels like the poll rate drops sometimes coming out of sleep. My symptoms are missed taps, inconsistent movement, and 2 finger scroll being interpreted as 2 finger zoom. I end up having to reload the driver multiple times before it returns to normal.