TV as external monitor displays "Unsupported Mode" on Native Resolution and Refresh Rate

llamanaro

Honorable
Feb 23, 2013
10
0
10,510
Hello, all! Firstly, this is my television: http://www.tigerdirect.com/applications/SearchTools/ite...

It is SUPPOSED to be a 720p, 1440x900 60Hz display, however when I connect my computer to it via HDMI, I will either get a black screen or a blue screen (NOT a bsod) saying "Unsupported Mode."

The TV works fine as an external monitor at 1024x768 resolution, however I would like to use the television to it's fullest potential as a second monitor. I have tried all the different modes under the "List All Modes" area in the display settings, but the native resolution (which is also the "Recommended" setting in Windows) will either be a black screen or an "Unsupported Mode."

Please help. Thank you.

EDIT: I am running Windows 8 on a custom built computer. The graphics card is an HD Raedeon 6850, and it has four outputs: Both variations of DVI, one HDMI (Which I'm connecting to the second monitor with), and a DisplayPort connection.
 
720p does not equal1440x900. "720p" is 1366x768. There are no 1440x900 tvs. Your trying to set an unsupported resolution that has nothing to do with the TV and is 16x10. And it's telling you that....

Either set it to "720p" in the catalyst TV section or just set the correct resolution of 1366x768.