0 Replies Latest reply on Apr 12, 2011 3:32 PM by waxdart

    Win 7 Pro vs Win Embedded Standard 7 graphics powermgmt behavior


      We have a system that is using the Intel HD graphics driver.


      When Windows 7 Professional is installed the Power management feature in the Intel Graphics appears to be indepentent of the Windows Power Scheme.


      Example: We can set the Windows Power scheme to Balanced and set the Intel Graphics Power Plan to Maximum Performance.



      When Windows 7 Embedded Standard (built using Application Compatibility template) is installed, the Windows Power scheme and the Intel Graphics power scheme are linked and controlled by the Windows power scheme.


      Example: Setting the Windows Power scheme to Balanced, forces the Intel Grpahics Power Plan Balanced as well. Changing the Intel Power plan with the Intel Graphics utility does not change the setting in the Windows Power scheme. The only way to change the Intel Graphics Power Plan is through the Windows GUI or by running Powercfg.exe -setactive 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c (High Performance GUID)



      Is it possible to force the driver to be independent of the Windows 7 Embedded Standard operating system power scheme the way it is under Windows 7 Professional ?