No Sound via HDMI or USB

[Stelladel]

I could really do with some help here; I have a Viao VGN-FW56E, once upon  a lifetime ago I plugged it into my HDMI TV and all worked well. So I bought a G2420HD BenQ 24” Monitor and connected via HDMI but got no sound. I tried all the setting including the advise in the troubleshooting section of the manual but still got nothing. So I bought some iLuv ISP 170 USB speakers and still no sound. I’ve tried combinations of speakers only, monitor only and both. I have updated the Realtek driver to 2.68 (latest) and still nothing any ideas would be very welcome!!!

[KatherineYH]

You should see in Control Panel > Sound > HDMI audio output, and should change setting for it to default. If you don't see this playback device in Sound section then again,  Audio/Video drivers must be updated. It should install HDMI drivers.

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Life is too serious to be taken seriously

[Blencogo]

Hi Stelladel and welcome.

The BenQ Monitor does not have built in speakers.

How are you connecting the speakers?  To the Vaio's headphone jack or to the BenQ G2420HD's headphone socket?