This camera comes with the HDMI output setup for 4k@30. This may not work on all displays.
Hook up the unit via USB so you can pull it up in software (any video conferencing application should work) and see a signal. Then use the IR remote control that comes with the camera to hit the menu button and pull up the On Screen Display (OSD). Go down to "Setup", and there you can change the HDMI output resolution.
Once changed hit the "Home" button as enter. Then exit the OSD.