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    HDMI/DisplayPort monitor detection in Windows 7?

    Discussion in 'Windows OS and Software' started by Peon, Nov 22, 2012.

  1. Peon

    Peon Notebook Virtuoso

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    I recall that a long time ago, if you turned off a monitor connected via HDMI or DisplayPort, Windows 7 would effectively unplug it - the device disconnected sound would play and the desktop would immediately shift back to the laptop screen.

    I tried this again recently, but it seems that this (thankfully) no longer happens. Did something change in Windows 7 SP1, or did AMD do something in the Catalyst drivers to block Windows from detecting power off events?
     
    Peon, Nov 22, 2012
    #1
  2. radji

    radji Farewell, Solenya...

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    It's with AMD. I noticed this as well when Catalyst was updated to 12.6 or something close to that. If the display is plugged in via HDMI/DP and the display continues to have power even though you turn it off, the GPU will still detect it as an active display. You can still change your desktop display mode to single display only with the Windows+P shortcut.
     
    radji, Nov 22, 2012
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  3. Peon

    Peon Notebook Virtuoso

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    It's nice to know that AMD thinks that this Windows "feature" is stupid too - now I can get rid of the DP -> DVI adapter I've been using to bypass this issue and just use the DP port on my monitor directly :)

    Does anyone know if Nvidia does something similar in their Verde drivers?
     
    Peon, Nov 22, 2012
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