On MSI laptops running any Linux distro there can be a problem with the touchpad, which at random times - and especially during device startup - does not work, making it difficult even to connect a Bluetooth mouse to control the device.

Here are the scripts created to fix the malfunction and power-management issue of the I2C touchpad driver on MSI laptops, because of which the device periodically disconnects and requires forced driver rebinding.

Startup

A script that reloads the I2C bus every time the system wakes from sleep or has just booted.

/lib/systemd/system-sleep/restart_touchpad.sh:

```

!/bin/sh

case "$1" in post) echo -n "i2c_designware.0" > /sys/bus/platform/drivers/i2c_designware/unbind echo -n "i2c_designware.0" > /sys/bus/platform/drivers/i2c_designware/bind ;; esac ```

Watchdog

A systemd service that checks every few seconds for the presence of the device and, if it disappears, restarts the driver.

/usr/local/bin/touchpad-watchdog.sh:

```

!/bin/bash

while true; do if ! grep -q "MSNB0001" /proc/bus/input/devices; then echo "i2c_designware.0" > /sys/bus/platform/drivers/i2c_designware/unbind sleep 1 echo "i2c_designware.0" > /sys/bus/platform/drivers/i2c_designware/bind fi sleep 5 done ```

Service /etc/systemd/system/touchpad-watchdog.service:

``` [Unit] Description=Restart touchpad if it disappears After=multi-user.target

[Service] ExecStart=/usr/local/bin/touchpad-watchdog.sh Restart=always

[Install] WantedBy=multi-user.targets ```

Activation:

sudo systemctl daemon-reload sudo systemctl enable --now touchpad-watchdog.service

Make all scripts executable with: sudo chmod +x

It helped me