Problems with HDMI out on an integrated HD3200

I've completely run out of ideas. I have an HD3200 graphics integrated with the Gigabyte MA780G-UD3H motherboard, and what looks like Realtek audio. It currently glares the text in the sound panel, "Not plugged in." Well, yes, it is.

I've tried everything. Reinstalling the drivers, rolling back the drivers, uninstalling, reinstalling windows, changing the BIOS around, etc. Still no HDMI sound output.

Is there a way to fool windows into thinking it is indeed plugged in, or a way to fix the problem itself?

Thanks in advance,

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