1 Reply Latest reply on Dec 7, 2015 3:08 PM by JohnRoss2113

    Brightness control issue on internal display when connected with external monitor in dual display - Intel HD 4000  Windows 10 Pro

    performancejunkie

      Hi guys & gals,

       

      This is driving me up the wall.. whenever I connect an external display to my laptop via the HDMI port to use them both in extended dual monitor mode the internal display on the laptop goes dim and the brightness control doesn't work.. the only solution I've been able to find is if I go into the device manager and change the driver for the display adapter from the Intel HD Graphics 4000 current driver, to the Microsoft Basic Display Adapter, this fixes the brightness on the lap but in order to get the picture back on the external monitor I have to go back to the Intel HD graphics 4000 driver.. this works but I unhook my laptop for school and work daily so this is a pain in the you know what.. and yes I've disabled the adaptive brightness in the power options, didn't help.. PLEASE HELP - see stats below.

       

      Tried 3 Intel drivers, 10.18.10.4252, 10.18.10.4276, & currently 15.33.38.64.4252 with no luck..

      Computer - Samsung Ativ Book - NP470R5E-501UB

      Windows 10 Pro

      Intel Core i5 3230M

      Intel HD Graphics 4000

       

      - Graphics tab from speccy -

      Graphics

              Monitor 1

                  Name    Generic PnP Monitor on Intel HD Graphics 4000

                  Current Resolution    1366x768 pixels

                  Work Resolution    1366x728 pixels

                  State    Enabled

                  Multiple displays    Extended, Secondary, Enabled

                  Monitor Width    1366

                  Monitor Height    768

                  Monitor BPP    32 bits per pixel

                  Monitor Frequency    60 Hz

                  Device    \\.\DISPLAY7\Monitor0

              Monitor 2

                  Name    HP 27xi on Intel HD Graphics 4000

                  Current Resolution    1920x1080 pixels

                  Work Resolution    1920x1040 pixels

                  State    Enabled

                  Multiple displays    Extended, Primary, Enabled

                  Monitor Width    1920

                  Monitor Height    1080

                  Monitor BPP    32 bits per pixel

                  Monitor Frequency    60 Hz

                  Device    \\.\DISPLAY8\Monitor0

              Intel HD Graphics 4000

                  Manufacturer    Intel

                  Model    HD Graphics 4000

                  Device ID    8086-0166

                  Revision    A

                  Subvendor    Samsung (144D)

                  Current Performance Level    Level 0

                  Driver version    10.18.10.4276

                      Count of performance levels : 1

                              Level 1 - "Perf Level 0"

                                  GPU Clock    349 MHz

        • 1. Re: Brightness control issue on internal display when connected with external monitor in dual display - Intel HD 4000  Windows 10 Pro
          JohnRoss2113

          Intel HD Graphics 4000 and Windows 10 & Windows 8.1   ( Brightness fix with latest driver)

           

           

           

          Brightness Fix with Driver Date 8/17/2015 )

           

           

           

          Brightness problem Solved

           

          Intel HD Graphics 4000 with NVIDIA® GeForce® GT650M graphics.

           

          Install:

           

          Intel HD Graphics 4000 Driver,     Driver Date: 8/17/2015

           

          Driver Version: 10.18.10.4276

           

          Make sure you backup your registry first before proceeding!!!!

           

          open regedit  in  Run Command

           

          Registry has wrong value:

           

          Currently reads as :

           

          [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000] "FeatureTestControl"=

           

                                                                                    "Edit DWORD 32 bit"=       f000

           

          Registry with New Value:

           

          You needed to change the value in registry to:  (   f008   )

           

          [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000] "FeatureTestControl"=

           

                                                                                   "Edit DWORD 32 bit"=        f008

           

          Then Restart Computer

           

          Brightness Fixed with Latest driver.

           

          Let me know if this was helpful to you

           

          jrreyn02@outlook.com