I believe I have the same issue, when the issue arises I get the following in dmesg:
TouchPad at isa0060/serio4/input0 lost sync at byte 1 I believe this is a duplicate of Bug #12124 -- bcm43xx causes touchpad instability and system freezes https://launchpad.net/bugs/63919 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
