Please include the output of synclient -l >synclient.txt . Seems to be a configration issue. Your button mappings may be out of order.
Also upload a pic from a camera of your touchpad if possible -- ButtonPress and ButtonRelease of button 4 are generated by left click of synaptic touch pad https://bugs.launchpad.net/bugs/159968 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs