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[ubuntu] HDMI: from laptop to TV in another room.

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linux-howto

http://ubuntuforums.org – With my Nvidia graphic card under Windows monitor Mirroring and audio via HDMI (out to receiver>HD TV) work just fine. Under Ubuntu 12.04 if Nouveau driver is used Mirroring works fine, but audio is absent (even though HDMI audio devices are listed - none of them producing sound via HDMI. When Nvidia Linux driver is installed Mirroring isn't working the same way it does in Windows and always messes-up my desktop (it's called Separate X Screen View Mode in Nvidia configuration utility). Twin-View mode, though works fine with Nvidia driver and there IS working HDMI audio in Twin-View (Hardware)