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    NUC7i3BNH HDMI RGB support in 4K missing

    alegregoriev
    alegregoriev May 5, 2017 6:53 AM

      I assembled my NUC and connected it to Samsung 40" 4K TV as a monitor. I'm using it for development.

       

      Previously I used the TV with Nvidia G730-based graphics (HDMI 1.4), and it did RGB in 4K resolution at 30 fps.

       

      Unfortunately, it seems that NUC graphics driver configures HDMI (2.0) output to run 4K 30fps in decimated YCrCb mode, rather than in RGB mode. This causes colored text in programming IDE and other text applications to appear blurry. G730 only had to go to YCrCb in 60 fps 4K mode.

       

      Any suggestions?

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        • 1. Re: NUC7i3BNH HDMI RGB support in 4K missing
          Intel Corporation
          May 5, 2017 8:29 AM (in response to alegregoriev)
          This message was posted on behalf of Intel Corporation

          Hello alegregoriev,
           
          Thank you for contacting the Intel community.
           
          I’m sorry about the issue you are experiencing with the Intel® Graphics, in this case, I don’t have clear what driver version you have installed, the latest version can be downloaded here:
          Intel® HD Graphics Driver for Windows® 10* for Intel® NUC Kits NUC7i[x]BN
           
          If you are using HDMI 2.0 devices you can also try updating the HDMI 2.0 Firmware, you can download this firmware update at the following link:
          HDMI 2.0 Firmware Update Tool for Intel® NUC Kits NUC6CAY and NUC7ixBN
           
          Note: This Firmware update is only required if an HDMI 2.0 device is being used. An HDMI 2.0 device must be connected when you run this Firmware update.
           
           
          Please let me know how it goes.
           
           
          Best wishes,
           
          Ivan.
           

          • 2. Re: NUC7i3BNH HDMI RGB support in 4K missing
            alegregoriev
            alegregoriev May 5, 2017 8:58 AM (in response to Intel Corporation)

            Thanks for the prompt reply.

             

            Of course, HDMI 2.0 firmware update is installed, otherwise there would be no HDMI link for this TV. The update installation, though, was quite a Catch 22.

             

            The Intel graphics driver version was 21.20.16.4590, driver date 1/18/2017. I installed the updated driver version 21.20.16.4627, but it didn't seem to fix it.

            • 3. Re: NUC7i3BNH HDMI RGB support in 4K missing
              alegregoriev
              alegregoriev May 5, 2017 10:02 AM (in response to Intel Corporation)

              To illustrate the issue, I took a couple of pictures.

               

              Here is the picture taken with a box running Nvidia G730. According to its control panel, HDMI runs in RGB mode:

               

              IMG_1185[1].JPG

               

              Here is the picture of the same bitmap on the same monitor displayed 1:1 on NUC:

               

              IMG_1190[1].JPG

               

              You can clearly see blue blur. Unfortunately, camera's autoexposure darkened the picture. Similar blur was observed on G730 when set to YCrCb mode.

              • 4. Re: NUC7i3BNH HDMI RGB support in 4K missing
                alegregoriev
                alegregoriev May 5, 2017 10:13 AM (in response to Intel Corporation)

                Another data point:

                 

                NUC6i3SYH, connected to a different Samsung monitor with 2560x1440 resolution, shows it without blur - in RGB mode.

                 

                I suspect the driver doesn't properly calculate maximum data rate to make a decision about supported modes.

                • 5. Re: NUC7i3BNH HDMI RGB support in 4K missing
                  Intel Corporation
                  May 5, 2017 11:29 AM (in response to alegregoriev)
                  This message was posted on behalf of Intel Corporation

                  Thank you for the information, by any chance, have you tried with different HDMI cable, we have tested this unit on 4k resolutions and it works perfectly fine, please bear in mind that to run 4k resolutions and to do works on 4k resolutions it is highly recommended a high quality HDMI cable and make sure you use straight connection and no adapters.
                   
                  Is it possible for you to try with different cable? If not, that is understandable.
                   
                  Also, I will appreciate if you can fill out the information at the following link:
                  https://communities.intel.com/thread/77761
                   
                   
                  Please attach as well the report for Intel® Graphics Drivers, follow the steps here:
                  http://www.intel.com/content/www/us/en/support/graphics-drivers/000005848.html
                   
                   
                  Regards,
                   
                  Ivan.
                   

                  • 6. Re: NUC7i3BNH HDMI RGB support in 4K missing
                    alegregoriev
                    alegregoriev May 5, 2017 2:09 PM (in response to Intel Corporation)

                    I haven't tried a different cable, but this cable works OK with G730. The data rate for 4K RGB at 30 fps is well within HDMI 1.4 spec, not only HDMI 2.0.

                     

                     

                     

                    Brand and Model of the system.

                     

                    		NUC7i3BN

                    Hybrid or switchable graphics system?
                    ie Does it have AMD or NV graphics too?

                    N/A

                    Make and model of any Displays that are used to see the issue (see note2 below).
                    LFP                     = Local Flat Panel (Laptop panel)
                    EFP = External Flat Panel (Monitor you plug in)

                    		 Samsung UN40MU630DFXZA TV

                    How much memory [RAM] in the system (see note2 below).

                     

                    		32GB

                    Provide any other hardware needed to replicate the issue.
                    ie: Cables&brand, cable type [vga, hdmi, DP, etc], dock, dongles/adapters, etc

                    		 HDMI 2.0 cable noname

                    Hardware Stepping (see note1 below).

                     

                    Software (SW)

                    Operating System version (see note2 below).

                    Windows 10

                    VBIOS (video BIOS) version. This can be found in “information page” of CUI (right click on Desktop and select “Graphics Properties”.

                    See the graphics report

                    Graphics Driver version; for both integrated Intel and 3rd party vendors (see note2 below).

                    See the graphics report

                    SW or Apps version used to replicate the issue.

                     

                    Configurations

                    Single display, clone, or extended (see note2 below).

                    Single display

                    Display resolution & refresh rate setting of each display (see note2 below).

                    3840x2160, 30 fps

                    AC or DC mode, i.e. is power cable plugged in or not?

                    AC

                    How to repro

                    Please provide steps to replicate the issue.  These steps are very crucial to finding the root cause and fix.
                    A screenshot to illustrate the issue is a huge plus. A video of the failure is even better! Attach to the post or provide the YouTube link.

                    		See screenshots (pictures, actually) above

                     

                    Graphics report attached.

                    • 7. Re: NUC7i3BNH HDMI RGB support in 4K missing
                      Intel Corporation
                      May 5, 2017 2:14 PM (in response to alegregoriev)
                      This message was posted on behalf of Intel Corporation

                      Thank you alegregoriev for the information, there is a new driver available right now, please try this driver and let me know the result. You can download it here:
                      https://downloadcenter.intel.com/download/26772/Intel-Graphics-Driver-for-Windows-15-45-?product=98911
                       
                      If the problem persists with the new driver, I will appreciate if you could upload your system information and the Dxdiag:
                      Intel SSU (System Support Utility) (https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility): 
                      Download Intel® System Support Utility

                      1. Download the utility
                      2. Run the exe and select ‘Scan’
                      3. Save and include as an attachment in the Intel Community Forum
                       
                      DxDiag Instructions:
                      1. Click on the “Start Menu” -> Type “DxDiag” -> Press “Enter” -> Wait for the DirectX Diagnostic Tool to finish loading
                      2. In the DirectX Diagnostic Tool, click “Save All Information” -> Save the file DxDiag.txt
                      3. Include DxDiag.txt as an attachment in the Intel Community Forum
                       
                       
                      Regards,
                       
                      Ivan.
                      • 8. Re: NUC7i3BNH HDMI RGB support in 4K missing
                        alegregoriev
                        alegregoriev May 5, 2017 5:51 PM (in response to Intel Corporation)

                        The problem still exists with the new driver.

                        • 9. Re: NUC7i3BNH HDMI RGB support in 4K missing
                          Intel Corporation
                          May 10, 2017 4:19 PM (in response to alegregoriev)
                          This message was posted on behalf of Intel Corporation

                          Hello alegregoriev,
                           
                           
                          Thank you for the information, there is a new driver available; would you please test this driver and let me know the result?
                           
                          You can download it here:
                          Intel® Graphics Driver for Windows* [15.45]
                           
                          Please let me know if this is the new driver you tried.

                           
                          Regards,
                           
                           
                          Ivan.
                           

                          • 10. Re: NUC7i3BNH HDMI RGB support in 4K missing
                            alegregoriev
                            alegregoriev May 10, 2017 9:13 PM (in response to Intel Corporation)

                            I've already been running this build (4664), following your suggestion from May 5.

                            • 11. Re: NUC7i3BNH HDMI RGB support in 4K missing
                              Intel Corporation
                              May 11, 2017 5:28 PM (in response to alegregoriev)
                              This message was posted on behalf of Intel Corporation

                              Thank you for the information, I just wanted to make sure.

                              We will further investigate.


                              Best regards,

                              Ivan.

                              • 12. Re: NUC7i3BNH HDMI RGB support in 4K missing
                                Intel Corporation
                                May 12, 2017 7:43 AM (in response to alegregoriev)
                                This message was posted on behalf of Intel Corporation

                                Hello alegregoriev,
                                 
                                 
                                I just want to replicate this issue, but I would like to ask you step by step how you are doing it and the software that you do to replicate it and the link to download the application that you are using if it is possible.
                                 
                                Thank you,
                                 
                                 
                                Ivan U.
                                 

                                • 13. Re: NUC7i3BNH HDMI RGB support in 4K missing
                                  alegregoriev
                                  alegregoriev May 12, 2017 10:44 AM (in response to Intel Corporation)

                                  I'm sorry/happy to report this, but this issue seems to have caused by the Samsung TV quirks combined with Intel's graphics adapter obeying them (unlike Nvidia G730 just doing whatever it's told).

                                   

                                  Samsung TV allows to assign an icon to each HDMI port. What the user guide is not saying, is that is seems to set different capabilities or some other flags or image processing options when you set the input icon to a PC.

                                   

                                  This problem was observed on an HDMI port 1 configured with generic icon. I also had port 2 configured with PC icon. After I switched the cable to port 2, the colored text was sharp, not blurred. After I changed port 1 to PC icon, and switched to it, the text was also non-blurred.

                                   

                                  The port configuration change didn't change EDID block, it's still:

                                   

                                  Raw EDID:

                                  00 FF FF FF FF FF FF 00 4C 2D 3A 0D 00 06 00 01

                                  01 1A 01 03 80 59 32 78 0A 23 AD A4 54 4D 99 26

                                  0F 47 4A BD EF 80 71 4F 81 C0 81 00 81 80 95 00

                                  A9 C0 B3 00 01 01 04 74 00 30 F2 70 5A 80 B0 58

                                  8A 00 50 1D 74 00 00 1E 02 3A 80 18 71 38 2D 40

                                  58 2C 45 00 50 1D 74 00 00 1E 00 00 00 FD 00 18

                                  4B 0F 51 1E 00 0A 20 20 20 20 20 20 00 00 00 FC

                                  00 53 41 4D 53 55 4E 47 0A 20 20 20 20 20 01 29

                                   

                                   

                                  02 03 46 F0 53 5F 10 1F 04 13 05 14 20 21 22 5D

                                  5E 62 63 64 07 16 03 12 29 09 07 07 15 07 50 3D

                                  04 C0 83 01 00 00 E2 00 0F E3 05 03 01 6E 03 0C

                                  00 10 00 B8 3C 20 10 80 01 02 03 04 E3 06 05 01

                                  E5 0E 60 61 65 66 01 1D 80 D0 72 1C 16 20 10 2C

                                  25 80 50 1D 74 00 00 9E 66 21 56 AA 51 00 1E 30

                                  46 8F 33 00 50 1D 74 00 00 1E 00 00 00 00 00 00

                                  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 C5

                                   

                                  Port 2 has slightly different EDID block:

                                   

                                  Raw EDID:

                                  00 FF FF FF FF FF FF 00 4C 2D 42 0D 00 00 00 01

                                  01 1A 01 03 80 59 32 78 0A 23 AD A4 54 4D 99 26

                                  0F 47 4A BD EF 80 71 4F 81 C0 81 00 81 80 95 00

                                  A9 C0 B3 00 01 01 04 74 00 30 F2 70 5A 80 B0 58

                                  8A 00 50 1D 74 00 00 1E 02 3A 80 18 71 38 2D 40

                                  58 2C 45 00 50 1D 74 00 00 1E 00 00 00 FD 00 18

                                  4B 0F 51 1E 00 0A 20 20 20 20 20 20 00 00 00 FC

                                  00 53 41 4D 53 55 4E 47 0A 20 20 20 20 20 01 27

                                   

                                   

                                  02 03 46 F0 53 5F 10 1F 04 13 05 14 20 21 22 5D

                                  5E 62 63 64 07 16 03 12 29 09 07 07 15 07 50 3D

                                  04 C0 83 01 00 00 E2 00 0F E3 05 03 01 6E 03 0C

                                  00 20 00 B8 3C 20 10 80 01 02 03 04 E3 06 05 01

                                  E5 0E 60 61 65 66 01 1D 80 D0 72 1C 16 20 10 2C

                                  25 80 50 1D 74 00 00 9E 66 21 56 AA 51 00 1E 30

                                  46 8F 33 00 50 1D 74 00 00 1E 00 00 00 00 00 00

                                  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 B5

                                   

                                  Nvidia G730 was showing text without color blur no matter what port icon setting it was.

                                   

                                  I've been using TV HDMI port 1 because the TV switches input to it, when it powers on/wakes up by a connected device powering up. Even if the newly powered on device is connected to port 2, and previously selected port was 2, the TV still switches to port 1.

                                  1 of 1 people found this helpful
                                  • 14. Re: NUC7i3BNH HDMI RGB support in 4K missing
                                    alegregoriev
                                    alegregoriev May 12, 2017 10:56 AM (in response to alegregoriev)

                                    Also it's worth noting that YCrCb setting in Color Settings page of Intel Graphics Control Panel doesn't affect color blur.

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