As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, THE CREW REPORTED THAT THE F/O'S PRIMARY FLIGHT DISPLAY (PFD) FAILED AND THAT THE SMOKE WAS PRESENT FOLLOWED BY THE CIRCUIT BREAKER POPPING. MAINTENANCE SWAPPED THE PFD WITH THE MFD AND DEFERRED THE MFD PER MEL PROCEDURES.