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External monitor not detected over hdmi

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  • Hi,

    I installed Windows Developer Preview on my laptop which is HP Pavilion dv5 and tried to connected my external monitor to it through HDMI but it is not detected by the OS.

    I have already updated display drivers, tried the Win + P trick but no luck so far.

    Also when I connect the same monitor through VGA it is working fine. HDMI cable itself is ok as the setup is working without any issue on Windows 7.

    In Device Manager, 4 devices are appearing as "unknown devices" under other devices. Could it be related? I tried to update there drivers but no luck.

     

    rizTaak

    Wednesday, November 23, 2011 9:15 PM

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