I experience this issue as well running Linux Mint 17.3 (based on Ubuntu 14). I updated to the latest BIOS (216) before I ever installed Linux on the machine. It has no effect. The old BIOS was not "buggy" by the way. It was a very minor update. The touchpad is not recognized at all. The hardware on this machine is just "too new." The touchpad cannot even be made to work in Windows 7. I think it's only functional in Windows 10 (and maybe 8). I know of no version of Linux where the touchpad on the machine works at the current time.
Output of sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date # SMBIOS implementations newer than version 2.8 are not # fully supported by this version of dmidecode. GL552VW.216 # SMBIOS implementations newer than version 2.8 are not # fully supported by this version of dmidecode. 11/20/2015 dmidecode is 2.12-2 (reported as the latest version) ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1530745 Title: the touchpad is not detected in Ubuntu 14.04.3 . The laptop is ASUS ROG GL552 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1530745/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs