10 Replies Latest reply on Jan 26, 2015 5:04 PM by DirkSteinkamp

    Enable UHD (3840x2160) external with HD 4400 via DisplayPort

    sheistqc

      Enable UHD (3840x2160) external with HD 4400

      Summary:
      I'm trying to get UHD (3840x2160) to work on a new Lenovo T440s with HD 4400. Display is Samsung U28D590 via DisplayPort, confirmed this mode works with a new MacBook Pro. External monitor only; Intel HD Graphics utility shows this mode as supported, but won't show or switch to it. Cannot add it using Custom Mode app either.

      Using Windows 8.1, I've tried on Windows 7 as well.

       

      --
      Lenovo T440s
      Windows 8.1
      Samsung U28D590 via DisplayPort
      (Note: Cable/monitor combo will display 3840 x 2160 with a current MacBook Pro)

      Driver: 15.33.0.3574 (10.18.10.3574)

      Intel HD Graphics Control Panel
      External display only
      Options > Information > Display Information
      Supported Modes > shows 3840 x 2160 (60p Hz)

      However, this mode is not availalble under Display Settings.

       

      --
      Using CustomModeApp.exe and CustomModeAppv2_0.exe

      Enter 3840 x 2160, 32 Bit, 60p Hz, Timing Standard CVT

      Dialog box:
      You are about to add the following custom resolution: 3840 x 2160, 32 Bit, 60p Hz. Do you want to continue?

      Error dialog box:
      The custom resolution exceeds the maximum bandwidth capacity.

       

      --
      Intel(R) HD Graphics 4400

       


      Report Date: Thursday, May 15, 2014
      Report Time [hh:mm:ss]: 11:10:15 AM
      Driver Version: 10.18.10.3574
      Operating System: Windows* 8.1 Tablet PC Edition(6.3.9600)
      Default Language: English (United States)
      Installed DirectX* Version: 11.0
      Supported DirectX* Version: 11.0
      Shader Version: 5.0
      OpenGL* Version: 4.2
      OpenCL* Version: 1.2
      Physical Memory: 8076 MB
      Processor: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz
      Processor Speed: 2694 MHz
      Vendor ID: 8086
      Device ID: 0A16
      Device Revision: 0B

       


      * Processor Graphics Information *


      Processor Graphics in Use: Intel(R) HD Graphics 4400
      Graphics Output Protocol (GOP) Version: 5.0.1032
      Current Resolution: 2560 x 1440

       


      * Devices connected to the Graphics Accelerator *


      Active Displays: 1
      Inactive Displays: 1

       


      * Built-in Display *


      Display Type: Digital
      Serial Number: LEN40a3
      DDC2 Protocol: Supported
      Gamma: 2.2
      Connector Type: Embedded DisplayPort
      Device Type: Built-in Display


      Maximum Image Size
      Horizontal Size: 12.2 inches
      Vertical Size: 6.69 inches


      Supported Modes
      1920 x 1080 (60p Hz)
      1920 x 1080 (59p Hz)

       

      Power Management Support
      Standby Mode: Supported
      Suspend Mode: Supported
      Active Off Mode: Supported

       


      * Digital Display *


      Display Type: Digital
      Serial Number: SAM0b80
      DDC2 Protocol: Supported
      Gamma: 2.2
      Connector Type: DisplayPort
      Device Type: DisplayPort


      Maximum Image Size
      Horizontal Size: 24.02 inches
      Vertical Size: 13.78 inches


      Supported Modes
      640 x 480 (60p Hz)
      640 x 480 (67p Hz)
      640 x 480 (72p Hz)
      640 x 480 (75p Hz)
      720 x 400 (70p Hz)
      800 x 600 (56p Hz)
      800 x 600 (60p Hz)
      800 x 600 (72p Hz)
      800 x 600 (75p Hz)
      832 x 624 (75p Hz)
      1024 x 768 (70p Hz)
      1024 x 768 (75p Hz)
      1024 x 768 (60p Hz)
      1152 x 870 (75p Hz)
      1152 x 864 (75p Hz)
      1280 x 1024 (75p Hz)
      1280 x 800 (60p Hz)
      1280 x 720 (60p Hz)
      1280 x 1024 (60p Hz)
      1440 x 900 (60p Hz)
      1600 x 900 (60p Hz)
      1680 x 1050 (60p Hz)
      1920 x 1200 (60p Hz)
      1920 x 1080 (60p Hz)
      2560 x 1440 (60p Hz)
      3840 x 2160 (60p Hz)

       

      Power Management Support
      Active Off Mode: Supported


      Raw EDID:
      00 FF FF FF FF FF FF 00 4C 2D 80 0B 00 00 00 00
      34 17 01 04 B5 3D 23 78 3A 5F B1 A2 57 4F A2 28
      0F 50 54 BF EF 80 71 4F 81 00 81 C0 81 80 A9 C0
      B3 00 95 00 D1 00 4D D0 00 A0 F0 70 3E 80 30 20
      35 00 5F 59 21 00 00 1A 56 5E 00 A0 A0 A0 29 50
      30 20 35 00 5F 59 21 00 00 1A 00 00 00 FD 00 38
      4B 1E 86 36 00 0A 20 20 20 20 20 20 00 00 00 FC
      00 55 32 38 44 35 39 30 0A 20 20 20 20 20 01 9F
      02 03 0C F0 23 09 07 07 83 01 00 00 02 3A 80 18
      71 38 2D 40 58 2C 45 00 5F 59 21 00 00 1E 00 00
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 97


      * Other names and brands are the property of their respective owners.

        • 1. Re: Enable UHD (3840x2160) external with HD 4400 via DisplayPort
          joe_intel

          Are you using any type of adapter or converter in the connection or is it a straight DP cable?

          Please make sure it is a straight connection and use the latest Intel® HD Graphics stable driver version as well as the latest BIOS for your system.

          • 2. Re: Enable UHD (3840x2160) external with HD 4400 via DisplayPort
            sheistqc

            Straight DP to Mini DP. With a current MacBook Pro, it carried full UHD.

            I've tried the latest manufacturer driver, the latest stable Intel driver, and the current beta Intel driver. System BIOS has been updated.

            I also used a different (brand new) Lenovo model with Mini DP, an X1 Carbon (Haswell) also with HD 4400. Same result.

            • 3. Re: Enable UHD (3840x2160) external with HD 4400 via DisplayPort
              ssteiner78

              You may be hitting the same issue as I. 4K screens run in tiled mode requiring the MST mode of Displayport (DP 1.2), so your display acts as two 1920x2160 displays and the driver makes it appear as one. Which MBP Model do you have? The current one is available in three varieties if GFX is concerned... discrede nVidia GT 750m, intel Iris Pro, and the regular iris GFX for the 13" incher. nVidia does support tiled mode (depending on driver and card), and as far as intel is conerend, there are conflicting statements - the Iris Pro Models should work, but if the lower end models work is up for debate. The data model for an HD 4400 for instance (same as I have), states that the max res/refresh rate is 3840x2160@30Hz. However, the datasheet also says that it can support two displays of a resolution higher than 1920x2160 at 60Hz, meaning there's enough pixel bandwidth for a single 4K screen. Yet, when I last tested (January), using the collage mode (required to sticth the two halves of a 4K display together) would lead in unpredictable / unstable behavior. I'm currently waiting for Dell to replace my 4K screen with a version that has the updated firmware that's supposed to fix all issues with nVidia displays.. then I'll give the HD4400 another go.

               

              Have you tried activating the collage mode?

              • 4. Re: Enable UHD (3840x2160) external with HD 4400 via DisplayPort
                sheistqc

                The Samsung U28D590D doesn't expose the SST/MST choice in its settings, and I'm having trouble finding anything definitive online as to what it supports in that regard. The manual does state:

                3840 x 2160 @ 60Hz (DisplayPort)

                3840 x 2160 @ 30Hz (HDMI)

                 

                but nothing more detailed. I did find an article that says the Samsung does use DP 1.2 with MST. The Mac is reporting 3840 x 2160 @ 60Hz so that is probably correct, and enabled by default.

                http://www.nag.co.za/2014/04/01/samsungs-4k-monitor-is-really-cheap/

                Other articles I found are unsure on the specs.

                 

                It seems to be a bit of a consensus that all of the current UHD is a little too bleeding-edge, with the obvious problems like I'm seeing here. MST to achieve 60Hz is definitely a kludge, it's impressive it works at all. HDMI 2.0 and DP 1.3 will make things a lot simpler; those will emerge first in the monitors, and eventually in the integrated and discrete chipsets. Which means... another upgrade cycle! I'm pretty much OK if I can't get this to work at full UHD with the Lenovo + HD 4400, it was mostly just to test the UHD waters. I'll end up giving this display to one of my Mac users, they can go blind using it at 3840 x 2160 if they want. I will probably wait for 2nd generation UHD and keep buying 2560x1440 monitors for now for users who want that much display.

                • 5. Re: Enable UHD (3840x2160) external with HD 4400 via DisplayPort
                  ssteiner78

                  What kind of GFX card does the MBP you used have? Iris, Iris Pro or nVidia? In case it is intel, that would be very useful information for the rest of us wondering about the capabilities of the on-board intel graphics as intel themselves can't come up with a definitive answer.

                  I wished I had wished about the entire MST thing beforehand - I'd have waited for the next iteration as well.

                  • 6. Re: Enable UHD (3840x2160) external with HD 4400 via DisplayPort
                    sheistqc

                    The MBPro has Iris Pro and NVIDIA GeForce GT 750M. I should have realized that was what it was using; like all Macs it always switches to the discrete graphics chip for an external display, so it's telling us nothing about what the Intel chip would do.

                    • 7. Re: Enable UHD (3840x2160) external with HD 4400 via DisplayPort
                      joe_intel

                      sheistqc, in your case the such UHD resolution will be limited to a maximum of 30Hz refresh rate because of the Intel® processor model you own (i7-4600U) and based on the following information:

                      DisplayPort* 1.2 / eDP*

                      • H-Processors: 3840 x 2160 @60Hz (Ultra-HD)
                      • U-Processors: 3200 x 2000 @60 Hz, 3840x2160@30Hz
                      • Y-Processors: 2560 x 1600 @ 60 Hz

                      HDMI* 4096 x 2304, 3840x2160 @ 24Hz / 24bpp
                      DVI 1920 x 1200 @ 60Hz

                      https://software.intel.com/en-us/articles/quick-reference-guide-to-intel-processor-graphics

                       

                      Of course there is also the chance that the computer uses the third party graphics controller instead or that is limited in the Video BIOS.

                      • 8. Re: Enable UHD (3840x2160) external with HD 4400 via DisplayPort
                        ssteiner78

                        On top of that, apparently the display is single tile according to Techreport (Samsung's 28'' display serves up single-tile 4K at 60Hz for $800 - The Tech Report). So, I guess you'll need an Haswell-H equipped machine to drive those screens at full resolution and refresh rate.

                        Tiled displays should work assuming the drivers can keep up (I'll report back when I get my Dell screen exchanged for one with a fixed firmware - with the old model, the collage mode mostly just leads to crashes) using the collage mode feature as even the U series is capable of driving two 1920x2160Hz screens at 60Hz (so add MST and driver support to that and you'll get the full res at 60Hz).

                        • 9. Re: Enable UHD (3840x2160) external with HD 4400 via DisplayPort
                          oscarkool

                          Intel is a joke! Nvidia and AMD BOTH allow customers to set custom resolutions with custom refresh rates. But apparently Intel customers aren't good enough for that. So we're left with the option of 60hz LOL. Intel is such a joke of a company, I really hope everyone realizes how bad their products and software are. STOP BUYING THEIR PRODUCTS!

                          • 10. Re: Enable UHD (3840x2160) external with HD 4400 via DisplayPort
                            DirkSteinkamp

                            The magic keyword here seems to be "collage mode". If you've never heard of it before (like me), you might enjoy this video demonstrating the settings: How to set up the ASUS PQ321Q Monitor - YouTube

                             

                            I had quite some troubles getting my new Monitor (the mentioned Samsung U28D590D) to work like I wanted first, and had already expected to only make it work at 3840x2160@30Hz, but the collage feature gives hope! :-) I tried it with my laptop and the monitor and it seems to work "in principle" so I will get a proper cable tomorrow.

                             

                            I have a Fujitsu Lifebook S904 with a docking station, and the dockin station exposes a DisplayPort and a DVI. Currently I connected the monitor to the DisplayPort, so I get 30Hz. Plan is: to get a DVI -> HDMI cable to connect that to the monitor, and enable the "picture in picture" options to have the two signals from DisplayPort and HDMI be displayed in two tiles. Using the collage mode will then hopefully create one screen out of these two tiles :-) ...