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    Switchable graphics snafu

    Discussion in 'Lenovo' started by pipspeak, Jul 30, 2009.

  1. pipspeak

    pipspeak Notebook Deity

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    I just played around with various bios settings for the GPU and ran into a problem that I'm not sure is by design or is by something not being right.

    With the discrete-only (switchable disabled) the ATI driver alone is not able to deal with my external UXGA monitor driven through the dock's DVI port. It cannot give me a 4:3 resolution greater than XGA and it cannot deal with switching between internal and external displays.

    Only when I fire up Lenovo's presentation director and set monitor preferences there that I can sort this out (turn off laptop display and set external monitor to UXGA).

    Can someone explain how presentation director works with the ATI controller? What would happen if I uninstalled the presentation director software? Would I lose the ability to control displays properly? I'm baffled by the ATI software's inability to deal with this relatively simple setup.
     
    pipspeak, Jul 30, 2009
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