Two finger scrolling stopped working suddenly
Solution 1:
I have this same problem
You can restart the touchpad by:sudo modprobe -r psmouse
Then,sudo modprobe psmouse
If you have this problem whenever you wake from suspend, then copy this script:
#!/bin/sh
case $1/$2 in
pre/*)
echo "Going to $2..."
# Place your pre suspend commands here, or `exit 0` if no pre suspend action required
modprobe -r psmouse
;;
post/*)
echo "Waking up from $2..."
# Place your post suspend (resume) commands here, or `exit 0` if no post suspend action required
sleep 2
modprobe psmouse
;;
esac
Now, place it in the /usr/systemd/system-sleep folder, and name it whatever you want.
Now, type sudo chmod +x "whatever you named your script"
Solution 2:
There may be an option in the settings. Check under the touch pad settings, or try reinstalling touchpad drivers.
Solution 3:
Closing the lid to suspend and waking the laptop back up fixed it for me.