ASUS M51AC-US005S with 8.1 with updates.

Do any settings have to be changed in the BIOS to make computer display on the TV using an HDMI cable?

It worked fine using a monitor at one residence.

At a different residence with no monitor available there is no picture being displayed after connecting the TV to the tower with HDMI cable.

The TV is a Westinghouse model number 9K32H240S

We thank you for your help.