JDinAZ wrote:Well I finally found a solution to this long time annoying problem! I just wish I would have found this sooner. The fix was to add a custom kernel boot parameter. I changed GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" TO GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1"
This will enable the support for AMD ATI HDMI sound which I guess from what I've read has been around since kernel 3.3 but is not on by default (I don't know why?) Anyways I hope this helps somebody as I know I've spent many hours trying to get this working. Good Luck!
sudo nano /etc/default/grub
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