Maybe it's set to the wrong input or channel?
Hi I have a PC with an nvidia gtx 560 graphics card w/ 1 HDMI and 1 dvi port. I use dvi to HDMI with my Toshiba hdtv. I have used just HDMI before. I never have to change my settings either, it always auto detects. So my bro disconnected my dvi to HDMI and put an HDMI and it gave no signal. Then I put back my dvi that didn't work anymore. So then I connected a regular Dell monitor with dvi to dvi and it works perfectly. Then I connect the HDMI and my PC detects it but still no signal on the TV. I then put the multiple monitor setting and it shows just the wallpaper on the monitor but still no signal on the TV. And when I right click and open resolution setting the window doesn't pop up so drag the monitor all the way from beyond the border to the right with sum luck. I have system restored and tried all sorts of things but nothing. Please help.

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