Samsung SA850D 27", distorted picture with my MBP 17"

Discussion in 'MacBook Pro' started by iMacNoob, Jul 23, 2013.

  1. iMacNoob macrumors member

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    Jul 13, 2008
    #1
    I just bought a samsung 850 27" monitor (http://www.samsung.com/us/computer/monitors/LS27A850DS/ZA).

    The image is all distorted (horizontally stretched) and I'm not sure how to fix this, the optimal resolution is 2560 x 1440.

    In my display setting, I don't have that option, the highest I see is 1920.

    I guess my laptop's video card can run this monitor at its optimal setting?

    I can't find a Mac driver for this either.

    I'm running osx 10.8.4
     
  2. Stetrain macrumors 68040

    Joined:
    Feb 6, 2009
    #2
    What sort of cable/adapter are you using?

    You can't run 2560x1440 over a normal DVI cable. You either need to use a DisplayPort cable or a Dual-Link DVI adapter.
     
  3. iMacNoob, Jul 23, 2013
    Last edited: Jul 23, 2013

    iMacNoob thread starter macrumors member

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    Jul 13, 2008
    #3
    Ok I reset the settings, and then in my 'display' I set it to 'best for display' and it looks fine now.

    BUT, I am not sure if it is displaying at 2560 or not, how can I tell? It doesn't show me that information anywhere now since I set it to 'best for display'.

    UPDATE

    When I click on the monitor display menu, it shows me that it is at 1920x1080.

    I am using the Dual link DVI cable, but I'm not sure if the adapter I am using to connect to my laptop can handle that resolution. I just looked at the mac store, and it looks like I have the "Mini DisplayPort to DVI Adapter"...is that not good enough?

    Also, my display settings doesn't even show 2560, will this change if I have a 'better' adapter? Or do I need to download a driveR?
     
  4. laurihoefs, Jul 24, 2013
    Last edited: Jul 24, 2013

    laurihoefs macrumors 6502a

    laurihoefs

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    Mar 1, 2013
    #4
    You would need the Mini DisplayPort to Dual-Link DVI Adapter for resolutions higher than 1920x1200.

    But a Mini Displayport to Displayport cable without any adapters would be a better option IMHO. Note, that the connector on the display end is a full size Displayport, not a Mini Displayport!
     
  5. yusukeaoki macrumors 68030

    yusukeaoki

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    Location:
    Tokyo, Japan
    #5
    Why not use Thunderbolt to HDMI and use HDMI for he display?
     
  6. laurihoefs, Jul 24, 2013
    Last edited: Jul 24, 2013

    laurihoefs macrumors 6502a

    laurihoefs

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    Mar 1, 2013
    #6
    The display in question has no HDMI port, and even if a HDMI to DVI adapter was then added to the soup, it still would not work with resolutions higher than 1920x1200.
     
  7. yusukeaoki macrumors 68030

    yusukeaoki

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    Mar 22, 2011
    Location:
    Tokyo, Japan
    #7
    It seems real odd to me when a display that has 1920x1200 and only runs on DVI.
    I dont know what Samsung is trying to do...
     
  8. laurihoefs macrumors 6502a

    laurihoefs

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    Mar 1, 2013
    #8
    The display is 2560x1440 and has two Dual Link DVIs and one Displayport.
     
  9. iMacNoob thread starter macrumors member

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    Jul 13, 2008
    #9
    The adapter I have says A1305.

    Is this the correct one?
     
  10. Yahooligan macrumors 6502a

    Yahooligan

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    Aug 7, 2011
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    Illinois
    #10
  11. Stetrain macrumors 68040

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    Feb 6, 2009
    #11
    No. That adapter is not Dual-link DVI capable, which is why you are not able to select the full resolution of the monitor in your settings.

    Your best best is a Mini-Displayport to Displayport cable like the one linked above from Newegg. You can also get them from Monoprice and Amazon.
     
  12. iMacNoob thread starter macrumors member

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    Jul 13, 2008
    #12
    Thanks, now the one linked above is very cheap, and the apple version is $99. Is it you get what you pay for or that is just the apple tax? :) I don't want to loose quality or at least I want to know if I am.

    BTW, if I was to get a thunderbolt, would I have to buy the adapter also?
     
  13. Stetrain macrumors 68040

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    Feb 6, 2009
    #13
    The main reason to get the Apple adapter is if you had an older monitor (like the old 30" cinema displays) that supported Dual-Link DVI but not Displayport. The cheaper Displayport cable should give the same or better signal since there is no conversion going on.


    Do you mean if you get a new Macbook with Thunderbolt? Or a Thunderbolt display?

    You can plug mini-displayport cables into Thunderbolt ports on Macs because the ports are backwards compatible.
     
  14. iMacNoob thread starter macrumors member

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    Jul 13, 2008
    #14
    Thanks I got the mini display port cable and it worked great!

    I was asking if I was to buy a thunderbolt display, if it came with the mini display port cable or not ( I thought it was a big deal to buy the adapter b/c the apple version is $99).
     
  15. Stetrain macrumors 68040

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    Feb 6, 2009
    #15
    The Thunderbolt display includes its own Thunderbolt cable which plugs right into your Macbook. You have to have a 2011 or newer model Macbook that is compatible with Thunderbolt.
     

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