I just bought a Optiplex 3010 refurbished machine. It I should i3-2120 with intel HD graphics 2000.
i battled to get the latest drivers but managed through the intel help system. Finally got it to go full screen on vga. But when I plugged in the hdmi, my tv say a it's an unknown signal. I tried with a laptop and tv connect and fine no issue. What can I do to fix it? I'm running windows 7 64 bit
Well, you got taken by purchasing such an old machine, with a dated processor and graphics.
I know you will say your HDMI cable is good, but try a different or better quality cable.
If you have a warranty on this clunker, return it.