As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEN INFLIGHT T134/13SEP SMOKE WAS REPORTED IN CABIN AROUND VIDEO SCREENS. FLIGHT DIVERTED TO DEN AND LANDED WITHOUT INCIDENT. FOUND FAULTY CONTROL UNIT UNDER SEAT 35F. REPLACED FAULTY CONTROL UNIT UNDER SEAT 35F. SYSTEM GROUND CHECKED NORMAL OPERATION.