2 external monitors with the new retina rMB?

Discussion in 'MacBook' started by Keene1bj, May 27, 2015.

  1. Keene1bj macrumors newbie

    Joined:
    May 27, 2015
    #1
    Using the adapter of course. Is it possible, and if so, has anyone used the HDMI from the adapter for one monitor and then a USB to HDMI converter via the USB port in the adapter for the second monitor?
     
  2. Lanny3 macrumors newbie

    Joined:
    Apr 29, 2015
    #2
    You can't run a monitor from a USB port.
     
  3. henry72 macrumors 65816

    henry72

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    Jun 18, 2009
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    New Zealand
    #3
  4. seong macrumors 65816

    seong

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    Feb 11, 2010
    #4
    USB C can
     
  5. Lanny3 macrumors newbie

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    Apr 29, 2015
    #5
    No you can't. The USB-A port is a USB 3 port. The other USB-C port is for power input from the power supply.
     
  6. NutsNGum macrumors 68030

    NutsNGum

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    Jul 30, 2010
    Location:
    Glasgow, Scotland
    #6
    You can with an adaptor but the refresh rate and quality is crappy beyond belief.
     
  7. Mcdevidr macrumors 6502a

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    Nov 27, 2013
    #7
    Plugable is coming out with a USB C dock that claims it will support multiple monitors.

    http://plugable.com/kickstarter
     
  8. Lanny3 macrumors newbie

    Joined:
    Apr 29, 2015
    #8
    Not with the Apple adapter. The 2nd USB- C port is for power input only. Read the specs for it. It just allows for the use of a USB 3 device and a HDMI display while charging the MacBook.
     
  9. Lanny3 macrumors newbie

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    Apr 29, 2015
    #9
    Read the Specs: https://support.apple.com/en-us/HT204360

     
  10. NutsNGum macrumors 68030

    NutsNGum

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    Jul 30, 2010
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    Glasgow, Scotland
  11. rahulr macrumors regular

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    Aug 1, 2008
    Location:
    North Carolina
    #11
    Not ideal, but you can do airplay to one monitor (via AppleTV/HDMI) and direct connect to another (HDMI/AV Adapter). I do this with my main monitor being what I work on with a TV to the side for notifications, additional workspace etc.

    Again, it's not ideal and I need to reconnect to the TV when the rMB goes to sleep or I unplug it or some other interruption, but when it works, it's pretty sweet.
     
  12. DanielNTX macrumors 6502

    Joined:
    May 2, 2005
    #12
    Yes you can with a USB-C to DisplayPort cable and a MST hub or MST compatible monitors.
     
  13. Dayv macrumors 6502

    Joined:
    Aug 18, 2009
    #13
    A coworker of mine used to run 4 USB 2.1 video adapters, connected to 19" monitors, off of a hub connected to one USB port on his MBP, while also running a larger monitor off of his DVI port. The extra monitors were usable for work, but if he tried to play video in them it was choppy at best. He also had to rearrange them in the display settings just about every time he reconnected to the hub, as they seemed to determine their order at random.

    Further proof that just because you can do something, doesn't mean you should.
     
  14. legioxi macrumors 6502a

    Joined:
    Mar 2, 2013
    #14
    USB 3 video adapters should fix that issue. They still won't be like a PCIe GPU but they have a lot more bandwidth to work with than USB 2 adapters.

    ----------

    There are video adapters for USB-A ports using USB 2.0 and 3.0. They don't use the internal GPU of the computer. It is built into the adapter and connects as a USB video device.
     

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