It was working before is this a known issue by chance related to nvidia graphics drivers?
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Possibly could be because it's been disabled.
In Windows 7;
When the HDMI screen is plugged in > right click on the little speaker icon > playback devices > make sure that "HDMI Device" is not disabled, if it is right click on the HDMI device and click enable.
If that's the issue should fix it
Hdmi out video but no sound
Discussion in 'Alienware 14 and M14x' started by Jetbo, Jul 2, 2011.