MBP cannot detect external display?

Discussion in 'MacBook Pro' started by PNayo92, Jul 20, 2011.

  1. PNayo92 macrumors member

    Joined:
    Jan 1, 2011
    #1
    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 :/
     
  2. PNayo92 thread starter macrumors member

    Joined:
    Jan 1, 2011
    #2
    Alright, so I may have found a solution - maybe not, I'll be back.
     
  3. Filipek macrumors member

    Joined:
    Jan 18, 2011
    #3
    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..
     
  4. Jexta macrumors member

    Joined:
    Apr 11, 2011
    #4
    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?
     

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