ubuntu 18.04 - no audio device listed

toko789

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

toko789

for some reason pulseaudio did not start after boot/autologin. This fixed that:
systemctl --user enable pulseaudio && systemctl --user start pulseaudio

ccalde

Hi @toko789 ,

You could check your HDMI devices here:
$ dmesg | grep HDMI
or
$ sudo aplay -l

toko789

hey ccalde, thx very much for you reaction.

dmesg:

root@up:~# 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:
root@up:~# 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 #0

so 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?

toko789

@ccalde - you have maybe ANY idea?

toko789

or ANYBODY else?

DCleri

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.

timkull

Have you rechecked all the connections?