Hmm, try this:
$ sudo sh -c 'echo -n "elantech" > /sys/bus/serio/devices/serioX/protocol'
Replace X with correct serio number.
File an upstream bug if this doesn't work.
Hmm, try this:
$ sudo sh -c 'echo -n "elantech" > /sys/bus/ serio/devices/ serioX/ protocol'
Replace X with correct serio number.
File an upstream bug if this doesn't work.