Abstract:

This video provides a solution for a common problem encountered when installing Ubuntu on Lenovo IdeaPad 3 or 5 laptops, where the integrated trackpad (mousepad) becomes non-functional. The fix involves modifying the GRUB bootloader configuration by adding a specific kernel parameter (i8042.nopnp -1 pci=nocrs) and subsequently updating GRUB. Upon rebooting the system, the trackpad is successfully enabled and becomes fully operational.

Fixing Lenovo IdeaPad 3/5 Trackpad on Ubuntu

• 0:00 Problem Identification: Upon installing Ubuntu on a Lenovo IdeaPad 3 or 5 laptop, the trackpad (mousepad) will not work.
• 0:15 Edit GRUB Configuration: To resolve the issue, you must access and edit the GRUB bootloader. The presenter instructs to comment out an existing line (using # if editing with vi) and then add the specific kernel parameter: i8042.nopnp -1 pci=nocrs.
• 1:08 Save GRUB Changes: After making the modification, save the GRUB configuration (e.g., using escape :wq! in vi).
• 1:21 Verify and Update GRUB: Verify that the grub command line linux entry now correctly includes the added parameter: i8042.nopnp -1 pci=nocrs. Then, execute the command sudo update-grub in the terminal to apply the changes.
• 1:55 Reboot and Confirm: Reboot the computer after updating GRUB. The trackpad should now be fully functional.
• 2:04 Key Takeaway: Adding the i8042.nopnp -1 pci=nocrs kernel parameter to GRUB and updating it is the essential step to restore trackpad functionality on Lenovo IdeaPad 3/5 laptops running Ubuntu.