Re: Disabling HDMI sound

As a first step,
Does it work using something like Knoppix?
If so then this will prove not a hardware fault.
Also check its not turned off in the BIOS
Ben


On 15/11/15 22:28, Patrick Elliott-Brennan wrote:
> Hi All,
>
> My new machine has an ASUS motherboard:
>
> H170M-E D3
>
>
> and an AMD Radeon R7 360 video card.
>
>
> I'm running Kubuntu 14.04
>
>
> I am getting no sound through the motherboard's onboard sound card.
>
> I get sound over HDMI and fortunately my monitor has an HDMI port AND
> built in speakers. However these are no-where near as good as my
> desktop speakers.
>
> The only option in the BIOS is HD Audio Controller (enable/disable).
> However nothing I change here has any effect.
>
> In the GUI the onboard sound is greyed out. Alsamixer shows HDMI sound
> only. The desktop GUI shows only HDMI.
>
> aplay -l shows only the HDMI sound.
>
> I have tried a number of things including
> /etc/modprobe.d/blacklist I have added
>
> snd_hda_intel
>
> and adding a line in GRUB
> radeon.audio=1 and using 0 as well.
>
> I have found another possible solution here:
> http://xorg.freedesktop.org/wiki/RadeonFeature/
>
> Which suggests, under Linux kernel parameters
>
> Option: radeon.audio
> Value:: 0,1
> Default Value: 0
> Explanation: Disable/enable HDMI audio
>
> My question is: what *do* I do with this? I'm assuming I need to
> add/remove something *somwhere* but...where/what?
>
> Any help would be most appreciated. Without the onboard sound card I'm
> stuck with the crappy monitor speakers and cannot use headphones nor
> use a microphone for video conferencing etc.
>
> Regards,
>
> Patrick

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