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    T400, DVI and Advanced Mini Dock

    Discussion in 'Lenovo' started by GoMike, Nov 10, 2008.

  1. GoMike

    GoMike Notebook Enthusiast

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    Hello,
    has anyone tried to hock up a DVI-Monitor to his/her ThinkPad T400 using the Advanced Mini Dock? Somehow, my ThinkPad doesn't recognize the Monitor and it is just showing a black picture. Can someone confirm that using DVI with the T400 is actually working? I don't have any trouble using VGA, but I really would like to use DVI.

    Any help would be greatly appreciated!

    GoMike
     
    GoMike, Nov 10, 2008
    #1
  2. Generator

    Generator Notebook Consultant

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    Are you using integrated or discrete graphics? I believe it will only work if you are using discrete.
     
    Generator, Nov 10, 2008
    #2
  3. GoMike

    GoMike Notebook Enthusiast

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    I have tried integrated as well as discrete and it doesn't work either way.

    Is it true that it's supposed to only work with dedicated? I wouldn't like that because I am running Windows XP and have mine locked to integrated since I don't need the dedicated one...

    Has anyone confirmed information?
     
    GoMike, Nov 10, 2008
    #3
  4. pacmandelight

    pacmandelight Notebook Deity

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    I think you have to explicitly select Discrete Graphics (not Switchable or Integrated) in the BIOS for the advance dock to output DVI. That's kind of annoying.

    Supposedly, Lenovo is going to update the BIOS to allow output to DVI, not just Internal ThinkPad LCD and VGA.
     
    pacmandelight, Nov 10, 2008
    #4
  5. Izmi

    Izmi Notebook Enthusiast

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    No, you don't have to change anything in the BIOS.
    Switch to high performance graphics and use presentation director to use your external monitor.
     
    Izmi, Nov 10, 2008
    #5
  6. dawn

    dawn Notebook Consultant

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    Switchable Graphics Frequently asked questions (FAQ)

     
    dawn, Nov 11, 2008
    #6
  7. GoMike

    GoMike Notebook Enthusiast

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    On that page it says that only systems running Windows Vista are effected by this problem. I am running Windows XP. So, DVI should work, shouldn't it?

    By the way, as I said early, DVI is NOT working when I set the graphics to dedicated in the BIOS and it is also NOT working when I set it to integrated.
     
    GoMike, Nov 11, 2008
    #7
  8. nnithenning

    nnithenning Newbie

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    Hi,

    Iv'e just tried my T400 with a Samsung 950B - it does not work OOTB with the DVI cable. Then I tried with a Samsung SyncMaster 245B and it worked fine...
     
    nnithenning, Nov 21, 2008
    #8
  9. GoMike

    GoMike Notebook Enthusiast

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    Hi, are you using Windows XP or Windows Vista? And does the DVI-output work for you with the integrated graphic or are you using the dedicated one?

    GoMike
     
    GoMike, Nov 21, 2008
    #9