Active displayport adapter vs non active

Hello,

I have myself a HIS Radeon HD 5870.

While trying to create my eyefinity setup, I ran into this little issue and wondered if anyone could help.

I have 3 x 24" monitors, all set at 1900 x 1080 res connected to my graphics card. The problem is my 3rd monitor, which is connected to the graphics card via DP>VGA addaptor is out of color compared to the other two monitors, which are identicle brand & model. I tried using a DP>DVI adaptor, which is not active and the graphics card would'nt activate it while the other two monitors were connected (DVI>DVI & DVI>DVI)

Somone please help?
7 answers Last reply
More about active displayport adapter active
  1. Have you tried running the DP output to one of the other monitors? Sometimes this makes a difference.
  2. All of the monitors are the same, i'll try it thow.
  3. Na, It dosn't make a difference. Do you think I should invest in an Active displayport?
  4. I wouldn't get a displayport ready monitor. AMD released some new certified adapters that they are distributing through Accell. http://www.amazon.com/gp/product/B004071ZX0/ref=s9_simh_gw_p23_d0_i2?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-2&pf_rd_r=0D0899FWAFXZMTMHNB7C&pf_rd_t=101&pf_rd_p=470938631&pf_rd_i=507846

    That should definitely work. Can you return the other adapters you have?
  5. Yeah, Thanks for help mate. I wont be buying another monitor thats for sure, I was just wondering if maybe it's because I dont have an 'Active display port' that the color is out of place.

    Anyway thanks for the link.
  6. A heads up on Active and Non Active Displayport adapters:

    If you have a single video card, and hook up a 3rd monitor to it (eg: eyefinity), you MUST use an ACTIVE displayport adapter, not a passive one.

    If you are using one or two monitors, passive displayport adapters work just fine.
  7. Quote:
    If you have a single video card, and hook up a 3rd monitor to it (eg: eyefinity), you MUST use an ACTIVE displayport adapter, not a passive one.


    But then how does my DP>VGA cable work? it's passive and isnt powered by anything else.
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