So, I have tried both HDMI ports on my TV and 2 different HDMI cables. I initially get a picture on the TV, and then it flashes a box on the screen that says "no source detected". Then, if I switch to one of the other sources, I have no picture at all on the HDMI port that the laptop is connected to, and cannot switch back to it, as the TV doesn't sense anything connected to it.
Any ideas what is going on? Seems like the TV should support 1920x1080, but maybe I should try another resolution, that could be what the problem is. It is the Samsung model EN556000H (I think - the Best Buy Black Friday special)
If anyone has any ideas, please let me know because this is driving me nuts.