[Linux-aus] Disabling HDMI sound
mail at elliott-brennan.id.au
Sun Nov 15 22:32:22 AEDT 2015
My new machine has an ASUS motherboard:
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
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
and adding a line in GRUB
radeon.audio=1 and using 0 as well.
I have found another possible solution here:
Which suggests, under Linux kernel parameters
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.
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