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Thread: nVidia GeForce 8400M GS graphic problem on VAIO VGN-SZ680n

  1. #1
    Join Date
    Oct 2010
    Posts
    4

    sad nVidia GeForce 8400M GS graphic problem on VAIO VGN-SZ680n

    Hello guys

    I have some kind of graphic problem here. you may see in the photos.
    I removed original OS (Vista) and installed windows 7 and after a while, when I was doing some photoshop stuff things changed.

    As it show in photos, I have some knid of periodic vertical hashed blue lines over my screen. that starts to show when computer powers on.









    Notebook Model : VAIO VGN-SZ680N
    Original OS : Vista Business x86
    Graphic Card : nVidia GeForce 8400M GS

    Please let me know if I should provide any additional information.

    Thanks in advance

  2. #2
    Join Date
    May 2008
    Posts
    980

    Re: nVidia GeForce 8400M GS graphic problem on VAIO VGN-SZ680n

    The issue is basically with the Display card that is your video card. It needs to be troubleshooted. You have to remove the driver and make the changes to be processed well. All you need to do is to follow certain procedure that will be helpful for you.

    • You need to open start menu and then right click on My Computer
    • Now you have to click on Manage option
    • You have to highlight the Device Manager option
    • There would be a + sign next to the Display adapters
    • You then have to right click on the video card and then click on Disable
    • Restart your system


    Perform the above procedure this will help you out well for sorting the issue.

  3. #3
    Join Date
    Oct 2010
    Posts
    4

    Re: nVidia GeForce 8400M GS graphic problem on VAIO VGN-SZ680n

    Thanks for your help. but didnt work.

    I have to mention that I have

    Standard VGA Graphic Adapter

    as my video card installed and I disabled it and restarted, but nothing changed. please help

  4. #4
    Join Date
    May 2008
    Posts
    613

    Re: nVidia GeForce 8400M GS graphic problem on VAIO VGN-SZ680n

    Is your Graphic card driver updated to the latest. Check out or make the reinstallation for the driver for the video card. As you are using Windows 7 it could be that he updated pack of the driver for the video card needs to be installed. I would suggest you to make the installation of the updated driver pack under safe mode of the same. This will be helpful for you and hope you can then get sort of the issue that you are facing. So check out well and make it work as essential. You can get the updated driver pack from nVidia official site.

  5. #5
    Join Date
    Oct 2010
    Posts
    4

    Re: nVidia GeForce 8400M GS graphic problem on VAIO VGN-SZ680n

    Thanks for you advice
    I visited the nVidia website, downloaded the driver for GeForce 8400M GS - Windows 7 32bit and that was this file:

    260.99_notebook_winvista_win7_32bit_international_whql.exe (126 MB)

    when I run the installation file I face this error:



    Should I install it on Safe Mode?

  6. #6
    Join Date
    Oct 2010
    Posts
    4

    Re: nVidia GeForce 8400M GS graphic problem on VAIO VGN-SZ680n

    I did it in Safe Mode and nothing changed

    please help

  7. #7
    Join Date
    Apr 2009
    Posts
    65

    Re: nVidia GeForce 8400M GS graphic problem on VAIO VGN-SZ680n

    Since, you have tried all possible ways of troubleshooting your graphic card, now it sounds like a faulty graphics chip / memory. The error that you are getting while updating drivers clearly stats that your hardware is not getting detected. I think that you should get it checked by Service Center.

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