Appending "i8042.nopnp=1 pci=nocrs" to boot parameters worked for the touchpad issue on the Lenovo V14-IIL .
Following are the steps I've followed:
1.) Open the file /etc/default/grub for editing, for example by running
sudoedit /etc/default/grub
2.) Add to the line beginning GRUB_CMDLINE_LINUX_DEFAULT: "i8042.nopnp=1 pci=nocrs" so that it reads:
GRUB_CMDLINE_LINUX_DEFAULT="i8042.nopnp=1 pci=nocrs"
** If other parameters are there between the double quotes, it may be OK to leave them.
3.) Save the file and exit
4.) Run this command to update the GRUB configuration:
sudo update-grub
5.) Reboot
Appending "i8042.nopnp=1 pci=nocrs" to boot parameters worked for the touchpad issue on the Lenovo V14-IIL .
Following are the steps I've followed: LINUX_DEFAULT: "i8042.nopnp=1 pci=nocrs" so that it reads: CMDLINE_ LINUX_DEFAULT= "i8042. nopnp=1 pci=nocrs"
1.) Open the file /etc/default/grub for editing, for example by running
sudoedit /etc/default/grub
2.) Add to the line beginning GRUB_CMDLINE_
GRUB_
** If other parameters are there between the double quotes, it may be OK to leave them.
3.) Save the file and exit
4.) Run this command to update the GRUB configuration:
sudo update-grub
5.) Reboot
Other relevant threads for this: /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1881322/ comments/ 5 /askubuntu. com/questions/ 1206190/ elan-touchpad- not-working- on-lenovo- ideapad- with-ubuntu- 16-04 /forums. lenovo. com/t5/ Ubuntu/ ThinkBook- 14-IML- ELAN-TouchPad- Not-Recognized- Ubuntu/ m-p/4622518? page=2# 5104555
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https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1861610/ comments/ 66 /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1861610/ comments/ 96
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