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digitalcoleman

Q: Mac Pro Late 2013 and Samsung 4k monitor problem

I have the new Samsung 28" 4k screen (U28D590D) and it has tearing along the right edge when used with displayport. Any way to fix that? I tried different cables (all DisplayPort 1.2 complient) to be sure and have narrowed the issue to the Mac Pro. The HDMI works fine tho only @30hz so is a bit laggy in normal interaction. There is no way to turn on Multi-stream as indicated and I hope it isnt that this screen will never work.

Mac Pro, OS X Mavericks (10.9.2), Dual Fire Pro D700

Posted on Apr 11, 2014 2:12 PM

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Q: Mac Pro Late 2013 and Samsung 4k monitor problem

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  • by Moesti001,

    Moesti001 Moesti001 Oct 20, 2014 2:34 PM in response to rpalacio
    Level 1 (0 points)
    Oct 20, 2014 2:34 PM in response to rpalacio

    Hello,

     

    I think it would be nice to have an overview which monitor is fully working at 3840x2160 60 Hz without problems

    - No problems means: no flickering, artifacts, glitching or whatever you want to call it.

    For Mac Pro running Yosemite os x 10.10

    Connected on the thunderbolt - displayport

    I would like to know if they work without tinkering around with special configuration programs or without changing any configuration files.

     

    Example

     

         Asus PB287Q

              D300 GPUs     Working / Not Working

              D500 GPUs     Working / Not Working

              D700 GPUs     Working / Not Working

         Samsung 28D590D

              D300 GPUs     Working / Not Working

              D500 GPUs     Working / Not Working

              D700 GPUs     Working / Not Working

     

    Please change the Bold text as you experience

     

    Best Regards

  • by PB_NB,

    PB_NB PB_NB Oct 20, 2014 3:17 PM in response to Moesti001
    Level 1 (0 points)
    Oct 20, 2014 3:17 PM in response to Moesti001

    Samsung 28D590D

              D500 GPUs     Working

  • by The_Dark_Passenger,

    The_Dark_Passenger The_Dark_Passenger Oct 20, 2014 5:02 PM in response to Moesti001
    Level 1 (0 points)
    Oct 20, 2014 5:02 PM in response to Moesti001

    I have ordered an Asus PB287Q, and it should be arriving Thursday. I'll let everyone know how it works with my 6-Core Mac Pro with D500s.

  • by Landci,

    Landci Landci Oct 21, 2014 5:57 AM in response to The_Dark_Passenger
    Level 1 (0 points)
    Oct 21, 2014 5:57 AM in response to The_Dark_Passenger

    Hello, i am using an iMac Late 2013 with NVIDIA GeForce GTX 780M 4096 MB, 3,4 GHz Intel Core i5 using display port

     

    i had the u28 working on Mavericks with hidpi mode but only at 30Hz which was ok for me.

    Now after updating to Yosemite i am not getting this mode any more, all i have left is 2560 *1440 which gives my kind of blurred text and one 1280 *720 (HiDPI) which is ridiculous because everything is way too large.

     

     

    Anybody got a resolution to this , i would very much appreciate it.

  • by PB_NB,

    PB_NB PB_NB Oct 21, 2014 9:25 AM in response to Landci
    Level 1 (0 points)
    Oct 21, 2014 9:25 AM in response to Landci

    I just tried my late 2013 iMac with the GTX 775M graphics. I got a mirror of my 2560*1440 but nothing greater with my Samsung monitor plugged into the thunderbolt port and into the display port 1.2 on the monitor. There doesn't appear to be any other options in the system preferences.

     

    Maybe SwitchRes can help?

  • by PB_NB,

    PB_NB PB_NB Oct 21, 2014 9:33 AM in response to Landci
    Level 1 (0 points)
    Oct 21, 2014 9:33 AM in response to Landci

    It looks like the iMac's don't have Thunderbolt 2 ports. Maybe there is a firmware update somewhere to bump it up. Until then, you won't be able to run the monitor at optimal resolution and frequency.

  • by ttppee,

    ttppee ttppee Oct 22, 2014 4:45 AM in response to Moesti001
    Level 1 (0 points)
    Oct 22, 2014 4:45 AM in response to Moesti001

    After install Yosemite my Asus PB287Q suddenly work like a charm, All the problems are gone, But after three days, The screen  is turn to black (Monitor still working by using HDMI input) and show "No Signal" from Displayport,

    Now, no matter what I try, It's just  dead and even worse, I was call Apple technician regarding this issue, but no one can answer, is anybody know why?

  • by The_Dark_Passenger,

    The_Dark_Passenger The_Dark_Passenger Oct 22, 2014 7:08 AM in response to ttppee
    Level 1 (0 points)
    Oct 22, 2014 7:08 AM in response to ttppee

    If you have another computer you can connect it to via DisplayPort, I'd start there and see if it works. If not, then it sounds like something just broke with the monitor and you should contact Asus.

  • by Simon Chan1,

    Simon Chan1 Simon Chan1 Oct 23, 2014 12:46 PM in response to digitalcoleman
    Level 1 (0 points)
    Oct 23, 2014 12:46 PM in response to digitalcoleman

    Mac Pro (Late 2013)

    6-Core

    D500

     

    Samsung 4k U28D590 Display

     

    The display is fine now at 3840 x 2160 in Yosemite.

     

    Anyone have a good color calibration setting for this monitor?

  • by The_Dark_Passenger,

    The_Dark_Passenger The_Dark_Passenger Oct 23, 2014 1:48 PM in response to digitalcoleman
    Level 1 (0 points)
    Oct 23, 2014 1:48 PM in response to digitalcoleman

    Just hooked up my Asus PB287Q, and can report that it is working with my Late 2013 6-Core Mac Pro with D500s, and does not have the tearing issue while running at the full 3840x2160@60Hz. However, I am still having the boot issue as I was with my LG 34UM95. It appears to be an issue with my Mac, and possibly not the LG. I will have to contact Apple and see what they can do as this pretty much confirms a hardware issue with my Mac Pro.

  • by The_Dark_Passenger,

    The_Dark_Passenger The_Dark_Passenger Oct 24, 2014 5:47 AM in response to digitalcoleman
    Level 1 (0 points)
    Oct 24, 2014 5:47 AM in response to digitalcoleman

    Hi,

     

    I'm wondering if anyone who has these monitors can open up their System Information, go under Graphics/Displays, and tell me if their display is detected as a Television? As I'm wondering if this is causing the issue I am having with boot.

     

    Or, if you could tell me if you can see the Apple boot splash during boot, and/or the FileVault password entry screen?

     

    Thanks

  • by EdAnuff,

    EdAnuff EdAnuff Oct 24, 2014 8:21 AM in response to The_Dark_Passenger
    Level 1 (15 points)
    Oct 24, 2014 8:21 AM in response to The_Dark_Passenger

    Interesting you should mention that.  I just noticed last night that the display info shows "Television: Yes" in the System Information: Graphics/Displays.  I used the technique here to Force RGB Mode and the script from here to create an EDID override file so it wouldn't report as a television.  It didn't have any visible differences to the display with the new EDID, so I put back the original EDID file.  Also, I'd also noticed with this monitor that it doesn't display until it gets to the login screen and, for example, if I hold down the option key to boot off another volume, it stays dark.  This behavior continues with the custom EDID, so I don't think it's related to the television identification.

  • by PB_NB,

    PB_NB PB_NB Oct 24, 2014 8:33 AM in response to The_Dark_Passenger
    Level 1 (0 points)
    Oct 24, 2014 8:33 AM in response to The_Dark_Passenger

    This is what mine reads:


    AMD FirePro D500:

     

      Chipset Model: AMD FirePro D500

      Type: GPU

      Bus: PCIe

      Slot: Slot-2

      PCIe Lane Width: x16

      VRAM (Total): 3072 MB

      Vendor: ATI (0x1002)

      Device ID: 0x679e

      Revision ID: 0x0000

      ROM Revision: 113-C3861J-687

      gMux Version: 4.0.11 [3.2.8]

      EFI Driver Version: 01.00.687

      Displays:

    U28D590:

      Resolution: 3840 x 2160 @ 60 Hz

      Pixel Depth: 32-Bit Color (ARGB8888)

      Main Display: Yes

      Mirror: Off

      Online: Yes

      Rotation: Supported

      Connection Type: DisplayPort

  • by The_Dark_Passenger,

    The_Dark_Passenger The_Dark_Passenger Oct 24, 2014 8:35 AM in response to EdAnuff
    Level 1 (0 points)
    Oct 24, 2014 8:35 AM in response to EdAnuff

    Thank you for your response. I called AppleCare, and the rep had me schedule a Genius Bar appointment. I'm taking my Mac Pro in Wednesday, and I'll let everyone know what they say.

     

    If anyone else is having this issue though, please post about it.

     

    Thanks

  • by The_Dark_Passenger,

    The_Dark_Passenger The_Dark_Passenger Oct 24, 2014 8:36 AM in response to PB_NB
    Level 1 (0 points)
    Oct 24, 2014 8:36 AM in response to PB_NB

    Thanks, does your monitor remain blank during boot, or does it display the boot splash and/or FileVault password entry screen. Also, is this the only monitor you have connected?

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