Ubuntu ELAN Touchpad Fix
Fix issues regarding touchpad not working in certain laptop using elan drivers in ubuntu 18.04
Step 1. Update the installed softwares by running commands below, and reboot.
sudo apt update && sudo apt upgrade -y && ubuntu-restricted-extras
sudo reboot
Step 2. Upgrade to latest LTS Kernal with HWE.
sudo apt install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04
Step 3. Adding additional parameters to the kernel and reboot.
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3.1 : Open grub file using below command.
sudo gedit /etc/default/grub
-
3.2 : Insert
i8042.nopnp=1 pci=nocrs
to the GRUB_CMDLINE_LINUX_DEFAULT see below.
Affected Laptop Lists:
- hp 15s-du2071tu