As the title says, on WIN 10 x64, after update to driver 17.4.3 from the 17.2.1 I lost any option to enable sound through HDMI.
To find a solution I have tried the following:
1. Uninstall all drivers and install 17.2.1 -> sound works normally
1.1 Install 17.4.3 without the "hdmi option" -> no sound on HDMI
2. Uninstall all drivers and install 17.2.1 without the "hdmi option" (also restoring the HDMI drivers in the CPanel with "show hidden" to the MS version) -> sound works
2.1 Install 17.4.3 without the "hdmi option" -> no sound on HDMI (in the Radeon settings console showing AMD Audio 10.0.1.1 although i didn't selected it in the custom install menu)
Lost hours during restarts to find out that i have to stick with 17.2.1 to hear something on my TV or my monitor.
I have to mention that before the restarts I cleaned the drivers with amdcleanuputility and manually from device manager.
Any idea is welcome.
Good news. The problem fixed itself after installing Windows 10 Creators Update