1 2 3 Previous Next 36 Replies Latest reply on Mar 17, 2017 10:52 AM by Intel Corporation

    When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?

    seungrye

      I use portable computer, and there is intel graphic driver.

       

      I check Device Manager then I got following Information.

       

      * Intel(R) HD Graphics

      * matching Hardware Ids is PCI\VEN_8086&DEV_22B0&SUBSYS_0E6A105B&REV_20

       

      I installed few different version of drivers, Then

       

      * `20.19.15.4331` version does not create virtual display when I pull off HDMI.

      * `20.19.15.4380' and `20.19.15.4444` version does create virtual display when I pull off HDMI.

       

      So, the question is simple.

      Intel driver after 20.19.15.4380,  create virtual display. Is it on any purposed? or bug?

       

      Anyone know about this?

        • 1. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
          seungrye

          Category

          Questions

          Answers (N/A if not applicable)

          Description

          Provide a detailed description of the issue

          See above

          Please place an X to the right of the option showing how often you see this issue using specific steps. (Ex: 'Every few times a game is started it flickers.' <- This would be "Often")

          Always (100%)

          Hardware (HW)

          Brand and Model of the system.

          Windows 10 Home
          (Intel (R) Atom(TM) x5-Z8500 CPU @ 1.44GHz 1.44GHz)

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

          Intel Only

          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)

          N/A

          EFP

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

          2G

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

          kangaroo PC (portable PC)

          20.19.15.4380 version driver (or later)

          Hardware Stepping (see note1 below).

          N/A

          Software (SW)

          Operating System version (see note2 below).

          Windows 10 Home

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

          N/A

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

          20.19.15.4380 version driver (or later)

          SW or Apps version used to replicate the issue.

          Duet (extend display)

          Configurations

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

          extended

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

          0 degree

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

          power cable plugged.

          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.

          1. connect HDMI
          2. launch duet
          3. disconnect HDMI
          4. see display property
          5. can see two virtual display (one for intel, the other is for duet)

          ...

           

           

          • 2. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
            Intel Corporation
            This message was posted on behalf of Intel Corporation

            Hello, seungrye:


            Thank you for contacting the Intel Communtiies.


            I would like to double check, where do you get this "virtual display" or where can you see it?


            Additionally, please provide me with the Intel® System Support Utility report from your system.


            How can you get that report?


            -Access: https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility
            -Download the utility
            -Scan your system with the utility
            -Export the report and attach it to your answer with the advanced editor option


            Regards,
            Esteban C

            • 3. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
              seungrye

              The Portable PC that I have, has virtual display application. like Duet or Splashtop.

               

              I can attach pad (that view the window screen like monitor), and see the display settings.

              It shows two display. One is for related to Intel Graphic (intel virtual display), and other is not related Intel Graphics (virtual display for virtual display application).

               

              I attached the SSU report.

              • 4. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
                Intel Corporation
                This message was posted on behalf of Intel Corporation

                Thank you for the information provided seungrye, let me further investigate this case, at the moment you could go back to the working graphics driver to get the best performance out of your device.

                I will keep you posted on this investigation.

                Regards,
                Esteban C

                • 5. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
                  Intel Corporation
                  This message was posted on behalf of Intel Corporation

                  Hi, seungrye:

                   

                  I know its been a while but, I wanted to double check, have you tested the Beta and latest graphics drivers released by Intel?

                   

                  Here I add the drivers to be used:

                   

                  15.40.25.4463 // https://downloadcenter.intel.com/download/26078/Intel-Graphics-Driver-for-Windows-10-and-Windows-7-8-1-15-40-?product=88355

                   

                  Hope this helps with the issue and hope I can hear from you with the outcome

                   

                  Regards,
                  Esteban C

                  • 6. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
                    seungrye

                    Sorry for late reply.

                    I almost forgot this thread.

                     

                    I tested your beta driver, and I got same result. (Issue occurred.)

                     

                    I also tested Intel Graphic Driver 20.19.15.4380 and 20.19.15.4474 too. And got same result too. (Issue occurred).

                     

                    So, What should I do now?

                    And again, What is "virtual display" (that created by intel graphic driver) used for?

                     

                    Thanks.

                    • 7. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
                      Intel Corporation
                      This message was posted on behalf of Intel Corporation

                      seungrye:

                      Thank you for your answer.

                      If this is not causing any performance issue, I am positive this is an expected behavior from the system, it may be related to the application you mentioned was being used in the system.

                      In the case where performance issues are present, please let me know so I can further assist you.

                      Regards,
                      Esteban C

                      • 8. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
                        seungrye

                        It seems has no performance issue. but has usability issue.

                         

                        I have this kind of situation.

                        1. I have headless portable x86 windows pc.

                        2. An application that make virtual display (via software driver). (I address this as 'My Virtual Display')

                        3. An application transfer the virtual display's screen image to tablet (ie. nexus 9 or ipad thing)

                        3.1 simplay, tablet become head (monitor) for headless portable x86 windows pc.

                         

                        Issue.

                        1. If portable pc has no head, then Intel graphic driver make virtual display. (I address this as 'Intel Virtual Display')

                        1.1 I can check through `display property` via headless portable PC's head (tablet).

                        2. `Intel Virtual Display` work as primary display. (main display)

                        3. If I logout, then windows only display login screen to primary display.

                        3.1 In login screen, second display show only black screen.

                        So, If I use headless portable PC (but I cant see screen through tablet that using My Virtual Display), and Intel graphic driver installed then I cant login properly.

                         

                        Sorry for my poor english.

                        • 9. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
                          Intel Corporation
                          This message was posted on behalf of Intel Corporation

                          I understand, sorry for the delayed answer seungrye, let me attempt to replicate this, I will keep you updated.

                           

                          Chances are that I will test it with Splashtop, if any additional comments or steps from your end that can assist to the replication are present, please do let me know.

                           

                          Regards,
                          Esteban C

                          • 10. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
                            Intel Corporation
                            This message was posted on behalf of Intel Corporation

                            Hi, seungrye:

                             

                            I got the nearest configuration to your PC, installed required software to get the best configuration that is like yours.

                             

                            Performed some tests with the streaming PC headless and with HDMI connected as well.

                             

                            I was not able to replicate the issue you are facing (when it locks, you get a black screen in the second or receiving display, tablet or PC)

                             

                            I did notice some issues with Intel HD Graphics control panel, in wich some text was not prompted while having the unit headless. I will be reporting that to check if it is an issue with the software (splashtop) or the driver (Intel).

                             

                            If any input from your side is present in order to get a better scenario set in order to replicate the issue, please let me know, I am more than willing to attempt to replicate this issue.

                             

                            There is a notepad added in my answer as well as some screenshots that I took while performing the tests. They are for you to have a clear overview of what I did and what was experienced from my side.

                             

                            This is the issue I found with Control Panel

                            4425 without HDMI.PNG

                             

                            This is how the virtual display is not shown within windows

                             

                            4425.PNG

                             

                            How I did not receive a black screen while having the unit headless, this is from the Surface Pro 4

                            surface lock.PNG

                             

                            This is how the system looked with 4438 driver and without HDMI connected.

                            surface splash.PNG

                             

                            Regards,
                            Esteban C

                            • 11. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
                              seungrye

                              Hello.

                              Thanks for your research.

                               

                              But, I mean headless is not either external monitor nor monitor attached pc (like imac, notebook, surface etc).

                              but, literally, monitor-less device. (like Intel NUC device.)

                               

                              So, I attach some image.

                               

                              IMG_20160830_104737.jpg

                              Connect Viritual Display to my portable headless PC. (I connect only Power cable / wireless keyboard, mouse, virtual monitor -through iphone-. Not physical monitor (like HDMI thing) )

                               

                              IMG_20160830_104812.jpg

                              In Display property, I can see 2 display. (one is my virtual display, and the other is Intel's)

                               

                              IMG_20160830_104850.jpg

                              In Intel Control Panel, I can see selected display is 'Virtual Display' (by Intel)

                              (And, The virtual display -through iphone- is secondary monitor, because Intel Virtual Display occupy the main monitor)

                               

                              IMG_20160830_105015.jpg

                              Intel Display Driver version.

                               

                              Thanks.

                              B.R.

                              • 12. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
                                Intel Corporation
                                This message was posted on behalf of Intel Corporation

                                Hello, seungrye:

                                 

                                Correct, I did get that configuration, I mentioned I connected HDMI to check how the system behaved in both scenarios.

                                 

                                I had the NUC headless, only the keyboard and mouse were connected. I just took a picture of the configuration I had.

                                 

                                Same graphics driver, configuration but only one display within Windows.

                                 

                                Do you have the option to disable or remove that second screen?

                                 

                                IMG-20160830-WA0001.jpg

                                Regards,
                                Esteban C

                                • 13. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
                                  Intel Corporation
                                  This message was posted on behalf of Intel Corporation

                                  Some additional comments and things to be checked.

                                  By any chance, do you have the option to get this tested with another device? An android tablet or maybe another PC?

                                  This is to check, if the iOS version creating this second display under Windows settings? Also, are you using Duet or Splashtop? I haven't test it with Duet so far.

                                  Please be aware this is not to point someone out as the source of the issue, it is to find out the scenario where you get the issue and then proceed accordingly.

                                  Hope I can hear from you soon.

                                  Thanks,
                                  Esteban C.

                                  • 14. Re: When I disconnect HDMI, then Intel driver create virtual display. Is it on any purposed?
                                    seungrye

                                    Ah!! Sorry. I miss very important information.

                                     

                                    My virtual display use custom made softwared virtual display.

                                    It has it's own virtual display driver.

                                     

                                    (so, In the issued configuration, The OS has two display adaptor.

                                    One is for Intel's, and the other is for mine)

                                     

                                    But Duet, Splash top uses not have their own virtual display but use intel's.

                                    (In this configuration, The OS has just one display adaptor. the Intel's)

                                     

                                    that's the different.

                                     

                                    I found very similar configuration that Easy&Light |Welcome to Easy&Light  software is same as mine.

                                    (It use software virtual display driver)

                                     

                                    Sorry for my poor english.

                                     

                                    Thanks.

                                    B.R.

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