HELP PLEASE. Dual Monitors.

Discussion in 'MacBook Pro' started by MikeMinervino, Jun 12, 2016.

  1. MikeMinervino macrumors newbie

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    Jun 12, 2016
    #1
    Hello, I have a 2012 macbook pro. I have an adapter from the mini display port that goes into a hdmi output and a VGA output. I have 2, 24" tv's that I'm using as dual monitors. The adapters/wires/tv's all work just not at the same time. I can use the hdmi and connect a single monitor, same thing with the vga. But when i hook both of them up at the same time, the "vga connected screen" comes up but not the hdmi. I have checked the settings, it only detects my laptop/1 tv screen. Im updated on all software, Ive done the smc reset, I've reset and re-plugged everything, unplugged everything, ETC. This is driving me crazy, any help at all is greatly appreciated. Thank you.
     
  2. DeltaMac macrumors 604

    DeltaMac

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    Delaware
    #2
    what exact type of adapter are you using?
    If you are using one of the adapters that connect to Mini Displayport, and have VGA/HDMI/DVI connections, such as this one.

    reading the note:
     
  3. JTToft macrumors 68040

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    #3
    My guess would be the same. Those sorts of adaptors typically only function with one output at a time.
     
  4. MikeMinervino thread starter macrumors newbie

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    Jun 12, 2016
    #4
    Yes, not by startech but the same exact adapter without the dvi attachment.
     
  5. DeltaMac macrumors 604

    DeltaMac

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    #5
    Passive adaptors are likely only usable for one attached device at a time.
    You would need to find an active adaptor of some kind, such as one of the thunderbolt docks.
    Here's one
     
  6. MikeMinervino thread starter macrumors newbie

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    Jun 12, 2016
    #6
    Trying to avoid that price lol. Quick question, if I keep my mini display port to hdmi, and add this adapter via usb to hdmi (refer to video please! ) would that work? Want insight before purchasing. Have already bought & returned a lot. Sadly. Lol thank you.
     
  7. JTToft macrumors 68040

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    #7
    - It should, yes. But be aware that performance won't exactly be at native levels with those USB devices.
     
  8. MikeMinervino thread starter macrumors newbie

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    Jun 12, 2016
    #8
    Hopefully that will be fine. Not doing anything hardcore with the extra monitor. Just more screens to be opened when doing doing research lol. Appreciate all the help.
     
  9. jerryk macrumors 68020

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    SF Bay Area
    #9
    I have a set up like this for a 2011 MBP 13. It works, but it is not ideal. If you move the mouse between external monitor 1 to external monitor 2 there is a 1/2 second delay. Also, forget about doing anything video (youtube, etc) on the USB connected monitor lots of frame drops, etc.
     
  10. MikeMinervino thread starter macrumors newbie

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    Jun 12, 2016
    #10
    If I just run a minimal game on there would it be okay? Requires nothing special for this game to process lol.
     
  11. DeltaMac macrumors 604

    DeltaMac

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    #11
    Any game can be OK - if you are also OK with how it runs, and how it appears on the screen.
    Try the game out, use it on the USB-connected display.
    You are really the only one who can decide if the common lag of a USB-connected display will be acceptable.
     
  12. MikeMinervino thread starter macrumors newbie

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    Jun 12, 2016
    #12
    Sounds good. Thanks a lot!
     
  13. jerryk macrumors 68020

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    #13
    I would run the game play on the monitor connected to the mini-DP. That will have better performance then the monitor connected to the USB.
     
  14. snaky69 macrumors 603

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    Mar 14, 2008
    #14
    A game on the USB screen? Not a very pleasant experience. Those are best suited for static stuff such as text, too many framerate issues otherwise.
     
  15. JTToft macrumors 68040

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    #15
    - 2D chess or solitaire should be fine, though. ;)
     

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