Sound wont work on ubuntu?

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Solution
Can you post output of "sudo aplay -L" You can test the sound with alsa directly with program speaker-test:
http://alsa.opensrc.org/Speaker-test
probably it is included by default on ubuntu.

I have two AMD cards running sound through hdmi (ubuntu 15.10, archlinux and OpenELEC) with the default opensource drivers with DTS/AC3 pass through as well as 2.0 PCM sound to TV no problem.


You havn't really said anything other than "it doesn't work"
Most likely there is just some setting misconfigured somewhere.
You havn't give any other information (post output from 'sudo aplay -L') or attempt to use speaker-test to actually test sound connection directly :\
 

AMDFanboy_1

Reputable
Feb 4, 2016
143
0
4,690
default
Playback/recording through the PulseAudio sound server
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
hdmi:CARD=HDMI,DEV=0
HDA ATI HDMI, HDMI 0
HDMI Audio Output
dmix:CARD=HDMI,DEV=3
HDA ATI HDMI, HDMI 0
Direct sample mixing device
dsnoop:CARD=HDMI,DEV=3
HDA ATI HDMI, HDMI 0
Direct sample snooping device
hw:CARD=HDMI,DEV=3
HDA ATI HDMI, HDMI 0
Direct hardware device without any conversions
plughw:CARD=HDMI,DEV=3
HDA ATI HDMI, HDMI 0
Hardware device with all software conversions
sysdefault:CARD=Generic
HD-Audio Generic, ALC887-VD Analog
Default Audio Device
front:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Analog
Front speakers
surround21:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Analog
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Digital
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Analog
Direct sample mixing device
dmix:CARD=Generic,DEV=1
HD-Audio Generic, ALC887-VD Digital
Direct sample mixing device
dsnoop:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Analog
Direct sample snooping device
dsnoop:CARD=Generic,DEV=1
HD-Audio Generic, ALC887-VD Digital
Direct sample snooping device
hw:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Analog
Direct hardware device without any conversions
hw:CARD=Generic,DEV=1
HD-Audio Generic, ALC887-VD Digital
Direct hardware device without any conversions
plughw:CARD=Generic,DEV=0
HD-Audio Generic, ALC887-VD Analog
Hardware device with all software conversions
plughw:CARD=Generic,DEV=1
HD-Audio Generic, ALC887-VD Digital
Hardware device with all software conversions

Thats for sudo aplay -L