Windows 10: Xonar DSX sound cut / DPC latency issues


  1. Posts : 14
    Windows 10 Pro x64
       2 Weeks Ago #1

    Xonar DSX sound cut / DPC latency issues


    I installed a Xonar DSX in my current build, and I've been troubleshooting it since. I'll be going with onboard for my next one, but I bought this, and yeah, i'd like it to work.

    Originally it wasn't recognized by system, but fixed EEPROM issue via link below:
    Xonar EEPROM Failure - AlsaProject

    Following this fix, i got it to function, but since then, I keep getting random sound cracks/drops - it sounds like my output gets set to 50% randomly and then readjusts.
    Read this was a driver issue/conflict:
    -tried Unified drivers from Maxedtech, didn't help, and most recent version included Hata Region Unload Virus- cleared and reinstalled from Asus site
    -read that this was associated w/ Nvidia driver conflict creating higher DPC latency, removed Nvidia HD Audio and this helped some, lowered the frequency of drops, but I still get issues after ~30 min.
    -also read it could be an issue w/ the Nvidia power saver, adjusted settings for full performance and saw no improvement.

    I know this is an old card, and it seems this issue dates back at least 4-5 years in various forms, but I'm hoping someone else may have figured it out by now. I've posted my most recent DPC report from LatencyMon below. I'm not really sure how to interpret/what to do next - any help is appreciated!

    Cheers,

    CONCLUSION
    ____________________________________________________________________________________________________ _____
    Your system seems to be having difficulty handling real-time audio and other tasks. You may experience drop outs, clicks or pops due to buffer underruns. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates.
    LatencyMon has been analyzing your system for 0:39:34 (h:mm:ss) on all processors.


    ____________________________________________________________________________________________________ _____
    SYSTEM INFORMATION
    ____________________________________________________________________________________________________ _____
    Computer name: BLINKERS
    OS version: Windows 10 , 10.0, build: 17134 (x64)
    Hardware: ASUSTeK COMPUTER INC., Z170 PRO GAMING/AURA
    CPU: GenuineIntel Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
    Logical processors: 8
    Processor groups: 1
    RAM: 32708 MB total


    ____________________________________________________________________________________________________ _____
    CPU SPEED
    ____________________________________________________________________________________________________ _____
    Reported CPU speed: 4008 MHz
    Measured CPU speed: 8 MHz (approx.)

    Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.

    WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature.



    ____________________________________________________________________________________________________ _____
    MEASURED INTERRUPT TO USER PROCESS LATENCIES
    ____________________________________________________________________________________________________ _____
    The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.

    Highest measured interrupt to process latency (s): 965.50
    Average measured interrupt to process latency (s): 3.836401

    Highest measured interrupt to DPC latency (s): 959.10
    Average measured interrupt to DPC latency (s): 1.371758


    ____________________________________________________________________________________________________ _____
    REPORTED ISRs
    ____________________________________________________________________________________________________ _____
    Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.

    Highest ISR routine execution time (s): 736.480539
    Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

    Highest reported total ISR routine time (%): 0.072128
    Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

    Total time spent in ISRs (%) 0.074828

    ISR count (execution time <250 s): 553268
    ISR count (execution time 250-500 s): 0
    ISR count (execution time 500-999 s): 1
    ISR count (execution time 1000-1999 s): 0
    ISR count (execution time 2000-3999 s): 0
    ISR count (execution time >=4000 s): 0


    ____________________________________________________________________________________________________ _____
    REPORTED DPCs
    ____________________________________________________________________________________________________ _____
    DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.

    Highest DPC routine execution time (s): 1504.22480
    Driver with highest DPC routine execution time: cmudaxp.sys - C-Media Audio WDM Driver, C-Media Inc

    Highest reported total DPC routine time (%): 0.381455
    Driver with highest DPC total execution time: cmudaxp.sys - C-Media Audio WDM Driver, C-Media Inc

    Total time spent in DPCs (%) 0.546710

    DPC count (execution time <250 s): 10083940
    DPC count (execution time 250-500 s): 0
    DPC count (execution time 500-999 s): 2047
    DPC count (execution time 1000-1999 s): 5
    DPC count (execution time 2000-3999 s): 0
    DPC count (execution time >=4000 s): 0


    ____________________________________________________________________________________________________ _____
    REPORTED HARD PAGEFAULTS
    ____________________________________________________________________________________________________ _____
    Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution.


    Process with highest pagefault count: none

    Total number of hard pagefaults 0
    Hard pagefault count of hardest hit process: 0
    Highest hard pagefault resolution time (s): 0.0
    Total time spent in hard pagefaults (%): 0.0
    Number of processes hit: 0


    ____________________________________________________________________________________________________ _____
    PER CPU DATA
    ____________________________________________________________________________________________________ _____
    CPU 0 Interrupt cycle time (s): 85.287013
    CPU 0 ISR highest execution time (s): 736.480539
    CPU 0 ISR total execution time (s): 14.209122
    CPU 0 ISR count: 552476
    CPU 0 DPC highest execution time (s): 968.883483
    CPU 0 DPC total execution time (s): 31.557365
    CPU 0 DPC count: 7302199
    ____________________________________________________________________________________________________ _____
    CPU 1 Interrupt cycle time (s): 65.480297
    CPU 1 ISR highest execution time (s): 98.361028
    CPU 1 ISR total execution time (s): 0.002270
    CPU 1 ISR count: 793
    CPU 1 DPC highest execution time (s): 318.671657
    CPU 1 DPC total execution time (s): 3.641999
    CPU 1 DPC count: 160359
    ____________________________________________________________________________________________________ _____
    CPU 2 Interrupt cycle time (s): 73.324617
    CPU 2 ISR highest execution time (s): 0.0
    CPU 2 ISR total execution time (s): 0.0
    CPU 2 ISR count: 0
    CPU 2 DPC highest execution time (s): 345.549152
    CPU 2 DPC total execution time (s): 18.728488
    CPU 2 DPC count: 728739
    ____________________________________________________________________________________________________ _____
    CPU 3 Interrupt cycle time (s): 69.610473
    CPU 3 ISR highest execution time (s): 0.0
    CPU 3 ISR total execution time (s): 0.0
    CPU 3 ISR count: 0
    CPU 3 DPC highest execution time (s): 435.684631
    CPU 3 DPC total execution time (s): 3.904150
    CPU 3 DPC count: 164484
    ____________________________________________________________________________________________________ _____
    CPU 4 Interrupt cycle time (s): 65.337923
    CPU 4 ISR highest execution time (s): 0.0
    CPU 4 ISR total execution time (s): 0.0
    CPU 4 ISR count: 0
    CPU 4 DPC highest execution time (s): 1504.22480
    CPU 4 DPC total execution time (s): 21.349780
    CPU 4 DPC count: 791067
    ____________________________________________________________________________________________________ _____
    CPU 5 Interrupt cycle time (s): 57.159602
    CPU 5 ISR highest execution time (s): 0.0
    CPU 5 ISR total execution time (s): 0.0
    CPU 5 ISR count: 0
    CPU 5 DPC highest execution time (s): 308.965818
    CPU 5 DPC total execution time (s): 3.245349
    CPU 5 DPC count: 138918
    ____________________________________________________________________________________________________ _____
    CPU 6 Interrupt cycle time (s): 59.706497
    CPU 6 ISR highest execution time (s): 0.0
    CPU 6 ISR total execution time (s): 0.0
    CPU 6 ISR count: 0
    CPU 6 DPC highest execution time (s): 1236.846307
    CPU 6 DPC total execution time (s): 17.635644
    CPU 6 DPC count: 649290
    ____________________________________________________________________________________________________ _____
    CPU 7 Interrupt cycle time (s): 54.236992
    CPU 7 ISR highest execution time (s): 0.0
    CPU 7 ISR total execution time (s): 0.0
    CPU 7 ISR count: 0
    CPU 7 DPC highest execution time (s): 331.531687
    CPU 7 DPC total execution time (s): 3.769086
    CPU 7 DPC count: 150936
    ____________________________________________________________________________________________________ _____
    <-----------SYSTEM SPECS
      My ComputerSystem Spec

  2.    2 Weeks Ago #2

    I had similar problems (cracks, latency) when I bought Xonar D2X; spent some searching at hardware forums and found recommendation: "Disable CPU C State Capability in BIOS". After this change, no Xonar-related problems at all. The souncard works flawlessly for nine years, currently in Windows 10 using Win7 drivers.

    You can try if this resolves your problem. See page 2-28 of your mobo manual.

    Click image for larger version. 

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      My ComputerSystem Spec


  3. Posts : 14
    Windows 10 Pro x64
    Thread Starter
       2 Weeks Ago #3

    Cool, thanks for the tip.

    I changed power plan settings but haven't messed w/ bios just yet. The drops do seem to coincide w/ idle times where power saving would be kicking in. I noticed this specifically with my mouse and have disabled power saving through device manager. Seems to have stopped bouncing for the moment, but this will be my next stop.

    Thanks again!

    Cheers,
      My ComputerSystem Spec

  4.    2 Weeks Ago #4

    You're welcome.
      My ComputerSystem Spec


 

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