Windows 8 and 8.1 Forums


Monitors - Mobile PC Display Won't Initialize

  1. #1


    Albuquerque, NM
    Posts : 15
    Win 8.1 Pro x64

    Monitors - Mobile PC Display Won't Initialize


    The Players
    OS: Windows 8.1 Pro
    Laptop: Sager NP9150
    Video Adapaters: Intel HD4000; nVidia GeForce GTX 670M
    Displays: Mobil PC Display; Samsung S24B300; LG 24MP56

    Connections
    Samsung S24B300 - DVI
    LG 24MP56 - HDMI

    Issue
    With both external monitors connected, I am unable to initialize the laptops Mobile PC Display. I have tried a 3rd party app (DislayFusion) and it is still no go. All three displays have native resolution 1920x1080.

    Note - hardware is capable of extending desktop to all 3 displays in Linux Mint 17.

    So now you know the problem, anybody have a suggestion? Do I just need to downgrade to Windows 7?
    Last edited by loaba; 02 Oct 2014 at 13:57.

      My System SpecsSystem Spec

  2. #2


    Albuquerque, NM
    Posts : 15
    Win 8.1 Pro x64


    2 days and nobody got noth'n?

    From my research, it seems to be a limitation of the Intel Onboard Graphics driver. Linux works, I think, because it utilizes the two GPUs differently.

    I considered picking up a DisplayPort-to-HDMI cable, but I can't find any concrete evidence that it would yield different results.
      My System SpecsSystem Spec

  3. #3


    This is mostly speculation, so it could be way off.

    Under Windows, since you're dealing with official drivers direct from the manufacturer, when the system detects the nVidia chip it automatically switches off the IGP on the CPU. Linux, however, is often using the duct tape and superglue method of getting things to work, so you can do crazy things like this in large part because no one has probably figured out or gotten around to making it so you can't. So what you need is something that will let you override the function that disables the Intel IGP.

    Do you know whether you're using the official Intel and nVidia drivers on Linux?
      My System SpecsSystem Spec

  4. #4


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Do you get 3 independent monitors in Linux? I would be surprised if the laptop had 3 independent outputs. You can use the Intel or NVidia (switchable graphics) but not both at the same time. At least that's my understanding of how it works.
      My System SpecsSystem Spec

  5. #5


    Albuquerque, NM
    Posts : 15
    Win 8.1 Pro x64


    Quote Originally Posted by asvent View Post
    This is mostly speculation, so it could be way off.

    Under Windows, since you're dealing with official drivers direct from the manufacturer, when the system detects the nVidia chip it automatically switches off the IGP on the CPU. Linux, however, is often using the duct tape and superglue method of getting things to work, so you can do crazy things like this in large part because no one has probably figured out or gotten around to making it so you can't. So what you need is something that will let you override the function that disables the Intel IGP.

    Do you know whether you're using the official Intel and nVidia drivers on Linux?
    In Linux, under the live DVD, its pretty bare bones. No proprietary drivers are in play.
      My System SpecsSystem Spec

  6. #6


    Albuquerque, NM
    Posts : 15
    Win 8.1 Pro x64


    Linux Mint 17 Live DVD did produce 3 extended desktops - no fool'n.

    The duct tape comment from earlier is probably spot on. What I need to do is try and gimp the intel driver somehow.
      My System SpecsSystem Spec

  7. #7


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    If you right click on your desktop and select screen resolution, how many monitors are listed?
      My System SpecsSystem Spec

  8. #8


    Albuquerque, NM
    Posts : 15
    Win 8.1 Pro x64


    3 displays are shown and any combination of 2 can be activated.
      My System SpecsSystem Spec

  9. #9


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    OK? You would think, that if it shows 3 you could use 3? Have you gone here?

    Click image for larger version
      My System SpecsSystem Spec

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