2

I am using an HP ProBook 440 G6 laptop and before a suspend, the touchpad works perfectly. But after a suspend it becomes much less sensitive and very lazy.

Here is output of xinput list command:

Virtual core pointer                       id=2
 - Virtual core XTEST pointer                 id=4
 - SYNA3082:00 06CB:8265 Touchpad             id=10
 - SynPS/2 Synaptics TouchPad                 id=12

After suspend the SynPS/2 Synaptics TouchPad entry disappears and modprobe doesn't help.

How can I fix this?

4

I recently solved this on my HP ProBook 430 G6. One solution is to reload the i2c_hid kernel module after resuming from a suspend.

modprobe -r i2c_hid # remove the i2c_hid kernel module
modprobe i2c_hid # add the i2c_hid kernel module

This can be automated. For example, on systems using systemd a script can be added to the directory /lib/systemd/system-sleep/. Below is the content of the script I use (/lib/systemd/system-sleep/touchpad-fix.sh):

#!/bin/sh
if [ "$1" = 'post' ]; then
    modprobe -r i2c_hid && modprobe i2c_hid
fi

You will likely need to be root to write the script to this location. Additionally make sure that the script is executable:

chmod +x /lib/systemd/system-sleep/touchpad-fix.sh

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.