External Display

[macexternaldisp]

Hey i recently bought a mini display port to hdmi for my tv

http://www.amazon.com/Mini-DisplayPort-HDMI-Adapter-Cable/dp/B003OC6LWM

The Macbook doesnt recognize i have a tv in system settings/displays even if i press detect displays.

When the tv is off i see it under arrangements but when i turn it on it disappears again.

Was wondering if anyone else had this problem and what they did to fix it.

Thanks

Mac os x 10.6.8
2.66 Ghz i7
4g ddr3 ram
regular mini display port/not thunderbolt

 

[dusk007]

I had something similar two days ago.
Use a VGA adapter but for some reason the first time I plugged it in, it wouldn't recognize. Opening spaces shows if the screen is there in arrangement.
Pulling the cable out and back in solved the problem.

Leave the TV on. Set it to the PC input source and than maybe just try putting the cable in and out once or twice. Sometimes these simple solutions work because only some detection is wrong, with HDMI there is always the added complexity of HDCP.