Fix: Touchpad not working after suspending laptop
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This bug is filed on Launchpad: Elantech touchpad stops working after suspend.
Every time you wake the laptop from suspend, you have to “unload and reload the psmouse module by hand.”
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So the fix is to write a script.
sudo vim /lib/systemd/system-sleep/trackpoint
with:
#!/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
Don’t forget to make it executable.
sudo chmod +x /lib/systemd/system-sleep/trackpoint
Reboot and enjoy.
Links: https://askubuntu.com/questions/671910/touchpad-not-working-after-suspending-laptop https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1490130
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