HD7950 working with just 1080p resolution via mDP

Discussion in 'Mac Pro' started by Spacedust, Mar 1, 2015.

  1. Spacedust macrumors 6502a

    May 24, 2009
    My friends LG 27EA83 display with HD7950 card (PowerColor PCS+) is detected as TV when using DisplayPort and max. resolution is just 1080p.

    When connected via DVI I got max. resolution which is 2560x1440. How to fix this ?

    He's running latest OS X Yosemite 10.10.2.
  2. thefredelement macrumors 65816


    Apr 10, 2012
    New York
    I had the same problem on a 7970 with two ViewSonic VP2770s. I didn't find a solution and ended up using a mini display port to DVI adapter.
  3. Spacedust thread starter macrumors 6502a

    May 24, 2009
    It's really annoying - I've hooked my HP ZR2240w via DisplayPort and it was detected properly with 1920x1080 resolution (which is max for this model).

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