Good Morning! I have an Radeon HD 6450 card which I am trying to expand the display. I have a monitor connected to the VGA and a Seiki television with HDMI port connected to the HDMI of the video card. My operating system is Windows 10. Both displays are identified and work fine in duplicate but when I try to expand the display the television goes into unsupported mode. I'm at a loss as I searched for answers and tried changing resolutions with no success -- same result for every selected resolution.
Software Version: 16.2.1
CPU Type: Intel Core 2 Quad
We have updated the title of this discussion with relevant details to better describe your issue. This should encourage better community participation in your discussion.
When you extend the displays, try adjusting the resolution/refresh rate of the second display that goes blank using the 1st display. Perhaps that will bring it back to life.