@Abhishek, 1. remember to run `sudo update-grub` after modifying grub parameters in /etc/default/grub
2. You may install my test kernel with: $ sudo apt install \ linux-modules-extra-5.4.0-41-generic=5.4.0-41.45+lp1886257 \ linux-image-unsigned-5.4.0-41-generic=5.4.0-41.45+lp1886257 \ linux-headers-5.4.0-41-generic=5.4.0-41.45+lp1886257 \ linux-headers-5.4.0-41=5.4.0-41.45+lp1886257 You may find package information in this page: https://launchpad.net/~vicamo/+archive/ubuntu/ppa-1886257/+packages 3. When booting, remember to press ESC to enter grub menu and select kernel "5.4.0-41-generic". 4. And, again, need your dmesg to confirm it's actually working. Thank you. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886257 Title: Touchpad detection issue in Fujitsu Lifebook UH554 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886257/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs