Found out it's kernel issue: https://bugzilla.redhat.com/show_bug.cgi?id=1313939#c86
Kernel v4.12 would fix the issue. I hope ubuntu will get the kernel fix too. ** Bug watch added: Red Hat Bugzilla #1313939 https://bugzilla.redhat.com/show_bug.cgi?id=1313939 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1694225 Title: [Thinkpad T450s] Click lock effect on trackpoint left button when touchpad is disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1694225/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs