Sorry I found the problem, I had installed this dkms module in the past https://github.com/vlasenko/hid-asus-dkms because I wanted to attempt at enabling the multitouch by myself modifying the driver but apparently it remained silent as dkms module. I removed dkms and reinstalled it and also removed every trace of the module from /var/lib/dkms/asus/1.0/4.10.0-28-generic/x86_64/. Now it works perfectly and the laptop works in general very well with Linux!
As 18.04 the touchpad is recognized perfectly so I think this bug report can be closed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1480673 Title: [ELAN 3320KD-3100] Asus T300 CHI bluetooth Touchpad is recognized incorrectly To manage notifications about this bug go to: https://bugs.launchpad.net/libinput/+bug/1480673/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs