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HDMI Audio not detected - Microsoft Community
https://answers.microsoft.com/en-us/windows/forum/all/hdmi-audio-not-detected/b25e079c-9ad6-4fd5-9fdb-f388e1bdecf2#:~:text=1.%20Click%20on%20Start%20-%3E%20Control%20Panel%20-%3E,devices%20%22%20and%20%22%20Show%20Disconnected%20Devices%20%22.
Windows 7 -> Digital Audio (HDMI) -> Not plugged in ...
https://answers.microsoft.com/en-us/windows/forum/all/windows-7-digital-audio-hdmi-not-plugged-in-error/7c584395-1a43-44f5-bb80-68542498fbe8
Both picture and sound work fine as long as the HDTV is on and set to the proper HDMI port before the OS comes on. What doesn't work: If I start the PC before the TV is on then the Digital Audio (HDMI) device reports "Not plugged in". So far the only way to reset it is to press Windows+P and cycle between computer only and extended mode.
Audio devices are missing or are displayed as "Not …
https://support.microsoft.com/en-us/topic/audio-devices-are-missing-or-are-displayed-as-not-plugged-in-after-you-restart-a-the-computer-that-is-running-windows-7-or-windows-server-2008-r2-8d5b0a20-a31a-97d5-16bb-3577a778504b
Additionally, in the Soundwindow, the status of the corresponding audio device is "Not plugged in." This problem occurs occasionally. It is more likely to occur on certain hardware. Cause This problem occurs because of a timing issue during audio initialization. Resolution Hotfix information A supported hotfix is available from Microsoft.
HDMI Audio 'Not plugged in' Fixed - YouTube
https://www.youtube.com/watch?v=nfgpy-7SrqI
Intel HD Graphics Driver Download:https://downloadcenter.intel.com/download/25313/Intel-HD-Graphics-Driver-for-Windows-7-8-1-10-3rd-Gen-BYT-
No audio via HDMI ("Not Plugged In" error) - Windows 7 ...
https://www.sevenforums.com/graphic-cards/377656-no-audio-via-hdmi-not-plugged-error.html
No audio via HDMI ("Not Plugged In" error) Just built my first PC and pretty proud of myself, other than the fact I can't get sound via HDMI. Video has always worked fine via HDMI -- but never audio. I've tried both an LCD TV and monitor, and I've used both the onboard HDMI port and a brand new GPU I just installed to see if it would correct ...
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