After update today, external HDMI monitor has no sound and speaker no longer listed as audio device

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Windows_11_user

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My Windows 11 22H2 updated today with2022-09 Cumulative Update for Windows 11 Version 22H2 for x64-based Systems (KB5017389) and 2022-09 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 for x64 (KB5017271). Now my external HDMI sound is gone. From task tar, click sound icon, only see Lenovo laptop's built-in speaker listed (Realtek Audio).Before I can see my HDMI monitor's speaker listed there.Shutdown laptop and leave external monitor on does not help. Disconnect HDMI cable, power off/on monitor did not help either.Audio of Device Manager does not list e

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