ubuntu 18.04 - no audio device listed

Hi there,
my UP board runs perfectly Ubuntu 18.04. I did install as well the fix for file /etc/pulse/default.pa like given as hint in the wiki.
However, when I open settings of Ubuntu and go to "Sound" I have still no device listed there. I try to get the Audio via the HDMI cable.
I'm sure you got that working. So those of you: could you pls help and tell me what's needed??
Thx in advance!!
thomas
Best Answer
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for some reason pulseaudio did not start after boot/autologin. This fixed that:
systemctl --user enable pulseaudio && systemctl --user start pulseaudio
Answers
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Hi @toko789 ,
You could check your HDMI devices here:
$ dmesg | grep HDMI
or
$ sudo aplay -l -
hey ccalde, thx very much for you reaction.
dmesg:
[email protected]:~# dmesg | grep HDMI [ 0.048318] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 5.094702] input: Intel HDMI/DP LPE Audio HDMI/DP,pcm=0 as /devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card0/input5 [ 5.101850] input: Intel HDMI/DP LPE Audio HDMI/DP,pcm=1 as /devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card0/input6 [ 5.102018] input: Intel HDMI/DP LPE Audio HDMI/DP,pcm=2 as /devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card0/input7
however at the end I get as well
[ 4.421692] [drm] HDaudio controller not detected, using LPE audio instead
and tons of lines like:
Audio Port: ASoC: no backend DAIs enabled for Audio Port
and aplay lists:
[email protected]:~# aplay -l
**** Liste der Hardware-Geräte (PLAYBACK) ****
Karte 0: Audio [Intel HDMI/DP LPE Audio], Gerät 0: HdmiLpeAudio [Intel HDMI/DP LPE Audio]
Sub-Geräte: 1/1
Sub-Gerät #0: subdevice #0
Karte 0: Audio [Intel HDMI/DP LPE Audio], Gerät 1: HdmiLpeAudio [Intel HDMI/DP LPE Audio]
Sub-Geräte: 1/1
Sub-Gerät #0: subdevice #0
Karte 0: Audio [Intel HDMI/DP LPE Audio], Gerät 2: HdmiLpeAudio [Intel HDMI/DP LPE Audio]
Sub-Geräte: 1/1
Sub-Gerät #0: subdevice #0
Karte 1: bytchtnocodec [bytcht-nocodec], Gerät 0: Audio () []
Sub-Geräte: 1/1
Sub-Gerät #0: subdevice #0
Karte 1: bytchtnocodec [bytcht-nocodec], Gerät 1: Deep-Buffer Audio () []
Sub-Geräte: 1/1
Sub-Gerät #0: subdevice #0so there are devices listed and as well errors, but however in ubuntu 18.04 sound settings I still have none listed, and , well what's really the problem: I get no sound out of HDMI (BIOS settings are correct... I had before ubilinux installed on same board where sound did work flawlessly). Hope anybody finds any hint in this output?
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@ccalde - you have maybe ANY idea?
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or ANYBODY else?
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Can you check in the BIOS if you have the boot settings for Windows or Linux/Android?
Also, just in case, try to reset the BIOS settings to default and then try again.
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Have you rechecked all the connections?
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