MBP cannot detect external display?

[PNayo92]

I have a 32" Insignia television that I am trying to connect to my new 15" MBP (2011) via mini-display port to HDMI cable. Unfortunately, the connection seems unable to work, and my macbook cannot detect an external display. I have done the following:

-My computer is plugged in to an outlet
-I rebooted my computer with and without the cable in it
-I can switch my television's "Tuner Mode" from cable to air. I tried both, and now i am on cable. Neither seem to work.
-I cannot find a setting on my television's menu which will change the input other than "cable" and "air"
-The only resolution given by my tv is the "max resolution", which is 1024 x 720
-There is no indication that either the TV or the macbook recognize each other
-The Insignia tv says "No Signal!"
-"Detect Displays" does nothing

any ideas or tips? I really want this to work :/

 

[PNayo92]

Alright, so I may have found a solution - maybe not, I'll be back.

 

[Filipek]

Ik heb the same problem with my 13" MBP (2011) and my Samsung HDTV (40"). When I connect my tv with a HDMI cable to the adapter, and the adapter in the thunderbolt port, I get a "No Signal" message on my television and my MBP doesn't recognize a second displayer attached to it (even when clicking on Detect Displays, this doesn't help).

Any solutions? Tried all of the above as well..

 

[Jexta]

Does your adapter work? Have you tried it with another machine?

I have used my mid 2011 MBP 13" with my 2008 42" LG LCD television without issue.

At the OP - Have you got another input device to try on the HDMI input on your television?