Windows 10: Sound stuttering and high latency from Wdf01000.sys and ACPI.sys

  1.    16 Sep 2015 #1

    Sound stuttering and high latency from Wdf01000.sys and ACPI.sys

    I've been having an issue with my sound were it starts stuttering after some time for no reason. I've downloaded LatencyMon and it showed me that wdf01000.sys goes over 50ms after a couple of hours while ACPI.sys can go higher than 1ms. They both got high DPC with wdf driver going off the scale.

    So obviously the culprit is wdf01000 driver. I wanted to know if there is a way to found out which program or hardware uses this driver? Using trial and error method i've found out that it is probably a software program called LCDHost which displays temperatures, weather, loads and other settings on my g19s keyboard LCD screen but its kinda hard to believe that it would cause this issue.

    Also i couldn't find out what ACPI.sys does besides being related to power management or bios. I've got a warning number 15 in my windows event log saying that BIOS is trying to access EC embedded controller and an error 56 related to "Application Popup" which mentions ACPI. I don't think that ACPI.sys is causing any issues but it is the second highest latency culprit.
      My ComputerSystem Spec

  2. Posts : 705
    Windows 10 Pro x64
       16 Sep 2015 #2

    Hi Cel,

    Have you tried the 8.72.107 Sept 3rd driver for your G19s?

    New features:
    •Added support for G633 Artemis Spectrum RGB 7.1 Surround Gaming Headset
    •Added Color Sync feature for G303, G633 and G910
    •Game Mode support added for G910
    •Improved Dolby 7.1 Surround Sound Driver
    •LGS now prompts for system restart on completion of install (needed to enable Dolby update)
    •Added ability to disable device startup effect for the G303, G633 and G910 in Settings
    •Removed headset disconnect requirement during LGS installation.

    Bug fixes: •G502 buttons visually misaligned in LGS
    •G930 power-off after 15 minutes.
    •LgCoreTemp driver remaining after LGS uninstall

    Firmware upgrades:
    G633 •Provides enhanced equalizer settings for better sound during gameplay
      My ComputerSystem Spec

  3.    16 Sep 2015 #3

    Installed it 20 minutes ago when i decided to check for new logitech drivers. Also installed new realtek audio drivers. Ill check if the issue has been resolved.

    I also forgot to mention that sound stutter only occurred when i clicked my mouse which is also a logitech g602 wireless mouse. Switching off and on the wi-fi receiver would fix the stutter for a couple of hours but then it would resume again. The mouse is also being controlled by logitech gaming software.
      My ComputerSystem Spec

  4.    16 Sep 2015 #4

    Click image for larger version. 

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    Unfortunately updating logitech software did not help.

    So is there any way to find out which program or hardware uses that Wdf01000?
      My ComputerSystem Spec

  5. Posts : 705
    Windows 10 Pro x64
       16 Sep 2015 #5

    I only know it's a driver. If you can find the associated service, you could maybe try temporarily disabling it and checking to see how effects your system. You can always re-enable after.
      My ComputerSystem Spec

  6.    16 Sep 2015 #6

    The problem is i can't find this service. I've used msconfig to disable all of the 3rd party services and windows services one by one and eventually it appeared that a software called LCDHost is causing this issue. However it is linked to AIDA64 software which shares PC temperatures and to logitech software which controls my mouse and keyboard. Also killing those apps doesn't actually stop the high latency - only switching off mouse wireless receiver helps for a time which makes it unclear which app or hardware is to blame.
      My ComputerSystem Spec


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