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ray_m Jan 30, 2017 2:44 PM
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This is the latest AMD Driver for your Rzyen APU : AMD Ryzen™ 5 2400G Drivers & Support | AMD .
Release Notes for the latest AMD Driver: Radeon™ Software Adrenalin Edition 18.10.1 Release Notes | AMD
Here is a Copy of your Sony Receiver Manual: https://www.sony.com/electronics/support/res/manuals/4263/42633611M.pdf .
There are several settings for HDMI that you need to set to get proper HDMI on your Receiver.
NOTE: I have a Onkyo 5.1 Receiver and always was able to get HDMI with 5.1 speakers attached. So it may be a misconfiguration of your Sony Receiver or Windows Settings in Sound Panel.
Ryzen 5 2400G
ASUS PRIME B450M PLUS
Windows 10 PRO
I'm also having the same issue when I started to update my driver to 18.10.1
I'm using hdmi cable for audio but no sound.