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Promethean Direct Support Thread, Promethean Projector Changing Computer Display Settings in Direct Support; Originally Posted by FN-GM If you turn the projector on first then the PC all is ok. That sounds like ...
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    Quote Originally Posted by FN-GM View Post
    If you turn the projector on first then the PC all is ok.
    That sounds like typical VGA port flakiness. Do the projectors have HDMI or DisplayPort ports you could try instead?

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    Quote Originally Posted by Arthur View Post
    That sounds like typical VGA port flakiness. Do the projectors have HDMI or DisplayPort ports you could try instead?
    They have HDMI, our PC's do not. Our PC's have display port the projector doesn't. Rather annoying!

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    Quote Originally Posted by FN-GM View Post
    They have HDMI, our PC's do not. Our PC's have DisplayPort the projector doesn't. Rather annoying!
    HDMI to DisplayPort cable perhaps?

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    Quote Originally Posted by Arthur View Post
    Would probably try if all else fails, but don't really want to buy 50 of these if we don't need to.

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    Quote Originally Posted by FN-GM View Post
    don't really want to buy 50 of these if we don't need to.
    Obviously you would try one cable first if all else fails.

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    Quote Originally Posted by Arthur View Post
    Obviously you would try one cable first if all else fails.
    You know what i mean

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    Issue resolved. Changed the following settings on the projector and it fixed it.

    Menu > Installation 1 > ActivBoard Installation.
    The whiteboard setting needs to be set to 16:10.

    Menu > Installation 2 > Advanced > Low Power Mode.
    Please turn this Off (by default this will be On.)

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    Hi FN-GM,
    Thank you for the update.
    I suspect that the low power mode is the one that has resolved it, though actually the issue is 2 fold.
    When Low Power mode is on, and then the unit switched off, the video board on the projector is switched off, therefore no EDID information is passed back to the PC when the PC is asking what resolutions can be used, as the PC will not get a response.
    With Low Power mode off, the video board holds a small amount of power and the PC can ask the projector for its EDID table and receives a response, and therefore chooses the correct screen resolution.
    The 16:10 WhiteBoard installation option forces the image to be 16:10 regardless of the screen resolution being passed into the projector, which will make any screen resolution changes to not be as noticeable.

    However when the projector is turned on AFTER the PC is turned on (this is when you see the issue) the graphics card should be asking the projector for its EDID information, but it appears that for whatever reason it is not doing this, and INTEL will be best placed to answer that one.

    Hope this explains what might be happening here.

  9. Thanks to phillyrovers from:

    FN-GM (11th February 2014)

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    Thanks for the explanation

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