3 Replies Latest reply on Apr 21, 2017 11:52 AM by Intel Corporation

    Four false non PNP monitors when hypervisor enabled

    riksterinto

      Category

      Questions

      Answers (N/A if not applicable)

      Description

      Provide a detailed description of the issue

      Intel 4th gen hd 4600 will not work with new drivers 4501+ on Windows 10 when Hypervisor is enabled.

      Effect: Causes false phantom monitors to show up in device manager and settings.

      External monitor isn't detected.

      Intel Graphics Control Panel will not open.

      General performance issues like lag and frame rate drops.

      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%): X

      Often (51-99%):

      Sporadic (20-50%):

      Very Sporadic (<20%):

      Hardware (HW)

      Brand and Model of the system.

      Dell 9530 XPS

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

      Optimum with NV 750

      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)

      LFP = Sharp QHD

       

      EFP = LG HD FHD

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

      16GB DDR3

      2 GB DDR5 VRAM

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

      HDMI

      Hypervisor enabled

      Hardware Stepping (see note1 below).

       

      Stepping C0

       

      PCI\VEN_8086&DEV_0416&SUBSYS_05FE1028&REV_06

      PCI\VEN_8086&DEV_0416&SUBSYS_05FE1028

      PCI\VEN_8086&DEV_0416&CC_030000

      PCI\VEN_8086&DEV_0416&CC_0300

      Software (SW)

      Operating System version (see note2 below).

      Win 10 version 1607AU or 1703CU

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

       

      BIOS

      \_SB.PCI0.GFX0

      Haswell LynxPoint HM87

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

      4501+

      SW or Apps version used to replicate the issue.

      Hyper V

      Configurations

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

      Single or extended

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

      Dell Sharp QHD 60hz

      LG FHD 60Hz

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

      Either

      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. Update Intel driver to new version 4501 or higher.  Dell recommended driver is 4531.  Have tried them all.
      2. Enable hypervisor auto by installing Hyper V or editing BCD
      3. External monitor will not work
      4. 4 Ghost non PNP monitors appear in device manager

      ...

      Creating new discussion since old one was marked answered when it was not.

       

      I have 3 dxdiag files here:

      1. DxDiag4624NoHV - Intel driver 4624 working with Hyper V disabled
      2. DxDiag4624wHV_bug - Intel driver 4624 NOT working Hyper V enabled
      3. DxDiag4463wHVWorks - Intel driver 4463 works with Hyper V enabled but older driver where scaling issues still exist

      link

      Microsoft OneDrive - Access files anywhere. Create docs with free Office Online.

       

      other discussion that was marked answered . False multiple monitors with intel drivers

       

      postHV.png