LG 3840x1440 on Surface Pro 3 i5

Discussion in 'Microsoft Surface Pro 3' started by jeremyalan, Mar 13, 2015.

  1. jeremyalan

    jeremyalan New Member

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    I have the LG 34UM95 and SP3 i5, updated with latest drivers - also using the dock.
    When connecting the mini-displayport to the LG's thunderbolt connection, I get nothing, no screen on either the dock or the tablet mini-dp connector.

    Do I need to get a mini-displayport to displayport cable instead? I was under the impression the i5 supported this resolution...
     
  2. HarnessTech

    HarnessTech Active Member

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    I'm using that exact monitor with a mini-displayport to displayport and it works pretty great. Waking up from sleep is problematic most of the time, but I doubt that's a problem with the monitor. Seems to be a common problem with the SP3 in general.
     
  3. bmack

    bmack Member

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    I found that you have to get a certain cable that will allow the wakeup function. Don't ask me why. I looked around on amazon in the review section before I purchased mine. The cable I purchased is below I have the mini display to display port. Hope it helps.
    http://www.amazon.com/gp/aw/d/B00C7RJQPY
     
    Last edited: Mar 13, 2015
  4. zhenya

    zhenya Active Member

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    The wake issue seems to be common to displayport in general. Whether Lenovo or Microsoft we have some users with the problems and others without. With my previous monitors I had endless trouble with the Surface. Since I switched to the Dell p2715q those issues are 99% resolved.
     
  5. jeremyalan

    jeremyalan New Member

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    Thanks all - I guess I have verified that mini-DP to mini-DP doesn't work.
    mini-DP to DP cable on the way from Amazon. looking forward to having the monitor up and running tomorrow!
    This one explicitly says 1.2 compliant: http://www.amazon.com/gp/product/B00A7R9I22/ref=gno_cart_title_0?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
    Thanks for the tip on this one as well: http://www.amazon.com/gp/product/B00C7RJQPY/ref=gno_cart_title_1?ie=UTF8&psc=1&smid=A1AMUYYA3CT6HJ

    Wondering if 1.1a vs 1.2 makes any difference in our application?
     

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