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    M17x Win7 super driver latency problems

    Discussion in 'Alienware' started by Koshinn, Sep 24, 2009.

  1. Koshinn

    Koshinn Notebook Deity

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    So I have the newest drivers off of dell.

    Win7 Pro x64 (RTM/Retail)

    I didn't have this problem in Vista.

    Running DPC Latency Checker shows a spike of > 16000 microseconds every so often. This causes music to noticeably stutter.

    Has anyone found a cause and/or fix for this? Yes I installed the drivers released a couple days ago and it didn't fix the problem.

    [​IMG]
     
    Koshinn, Sep 24, 2009
    #1
  2. kilthro

    kilthro Floating in Space

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    Nope. i have the same issues. but i did this test even before I installed drivers and had the same result.. I also had bad spikes in vista...
     
    kilthro, Sep 24, 2009
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  3. augur_

    augur_ Notebook Guru

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    I think it's still generally accepted that the SLI graphics cards are causing this. It goes away if you're running on the integrated graphics, but the second you switch to the dual cards, it starts getting crappy.
     
    augur_, Sep 24, 2009
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  4. Prodigy-man

    Prodigy-man Notebook Geek

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    Wait... That most annoying sound stutters that I have in Win 7 RTM is caused by DPC Latency issue??
     
    Prodigy-man, Sep 24, 2009
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  5. Prodigy-man

    Prodigy-man Notebook Geek

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    I just ran mine... this is awful... So what could be done to fix this?
    [​IMG]
     
    Prodigy-man, Sep 24, 2009
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  6. Axman

    Axman Notebook Evangelist

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    i want to see if the new 4870s make a difference.
     
    Axman, Sep 24, 2009
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  7. Koshinn

    Koshinn Notebook Deity

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    Wow, yours is worse than mine!
     
    Koshinn, Sep 24, 2009
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  8. Encephalon9986

    Encephalon9986 Notebook Enthusiast

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    This is what mine looks like running Windows 7 RTM
     

    Attached Files:

    Encephalon9986, Sep 24, 2009
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  9. Prodigy-man

    Prodigy-man Notebook Geek

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    Do you have to rub it in? :) But what drivers are you running for chipset/audio etc...?

    For me the new audio drivers kinda fixed the sound stuttering problem. It still happens when watching youtube HD but itunes no longer stutters... only when OSD menu comes up...

    And it is getting worse now...
    [​IMG]
     
    Prodigy-man, Sep 24, 2009
    #9
  10. Koshinn

    Koshinn Notebook Deity

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    I get stuttering in Songbird.

    I'll try running just the 9400 and see if I get stuttering later, maybe they're right that the SLI drivers are owning us.
     
    Koshinn, Sep 24, 2009
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  11. Encephalon9986

    Encephalon9986 Notebook Enthusiast

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    I am using all the newest drivers for my hardware from the dell website and the new bios. All of them are up to date on what dell has released.
     
    Encephalon9986, Sep 24, 2009
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  12. Koshinn

    Koshinn Notebook Deity

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    So it seems the SLI cards are the problem, running on the 9400 almost completely removed the latency problems. I still get occasional lag, but it doesn't cause stuttering.

    I'm running 186.82
     
    Koshinn, Sep 25, 2009
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  13. Rotsu

    Rotsu Notebook Consultant

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    I have disabled SLI and the sound stuttering is much less than with SLI.

    This is very frustrating.....

    I am hoping that this gets sorted out with some updated windows 7 drivers.
     
    Rotsu, Sep 25, 2009
    #13
  14. BIGX333

    BIGX333 Brazillian Overclocker

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    And dell's latency problems strikes again :D
     
    BIGX333, Sep 26, 2009
    #14