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    SPEED mode not working After W7 install

    Discussion in 'VAIO / Sony' started by YSF, Jul 14, 2011.

  1. YSF

    YSF Notebook Enthusiast

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    hello ..

    after installing my Z591U Vaio to W7 the speed mode is not working, i do in first time the istallation and it was work but after some problems i try ti install W7 again and now the SPEED mode is not working is there any driver missing. i dont remember what drivers i install in the first time.

    see attachment, Note: idont have any program working while i try to switch it to speed mode but it shows this message.

    i need advice and help
     

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    YSF, Jul 14, 2011
    #1
  2. jeremyshaw

    jeremyshaw Big time Idiot

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    does clicking okay work?
     
    jeremyshaw, Jul 14, 2011
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  3. YSF

    YSF Notebook Enthusiast

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    yes the click works
     
    YSF, Jul 14, 2011
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  4. YSF

    YSF Notebook Enthusiast

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    the problem is solved ..

    i just un-install the win7 nvidia driver and install Vista nvidia.

    now both stamina and speed modes works ..
     
    YSF, Jul 14, 2011
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  5. YSF

    YSF Notebook Enthusiast

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    but now the new problem that the brightness not working on the SPEED mode .. ?!!
     
    YSF, Jul 14, 2011
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  6. anytimer

    anytimer Notebook Virtuoso

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    Go back to the Win 7 driver, then see if there is a registry key like this.
    HKCU,"Software\NVIDIA Corporation\Global\NVTweak",QTwkEnableModeChangeWarning

    If there is, delete it. (Note: backup your registry first).

    btw. where did you get that driver from? This key should have been deleted during driver installation.
     
    anytimer, Jul 14, 2011
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  7. istyle1129

    istyle1129 Notebook Enthusiast

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    I am having a similar issue (it has been over 15 or 16 months already since I updated to Win7 Pro 32bit) and haven't been able to adjust the brightness of the screen when switched to SPEED. How can I get the Win 7 driver? I went onto the Sony Support page, and it is telling me the same thing that I should use the Win 7 driver. Thanks in advance.
     
    istyle1129, Jul 15, 2011
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  8. anytimer

    anytimer Notebook Virtuoso

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    What's your model number?
     
    anytimer, Jul 15, 2011
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  9. YSF

    YSF Notebook Enthusiast

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    maybe there some tips we didnt make, i guess the nvidia software must install at first after update or something els in orders..
     
    YSF, Jul 16, 2011
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  10. Achusaysblessyou

    Achusaysblessyou eecs geek ftw :D

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    sony recommends you download and install drivers in this order:

    http://forum.notebookreview.com/6155868-post96.html

    edit: you should do it this way as many people have fresh installed and come up with problems like you

    don't forget to rep him if you can :)
     
    Achusaysblessyou, Jul 16, 2011
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  11. YSF

    YSF Notebook Enthusiast

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    istyle1129 please do this, because i just solve my problem now :)

    simply just download the BIOS for win.7 and update it that will be the solution.

    now my Vaio Z work fine with both modes Speed & Stamina with Brightness and Volume Control.

    thank you every one for giving the help.

    Regards

    yousef
     
    YSF, Jul 16, 2011
    #11