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Ubuntu: no audio devices?

Posted: Fri May 10, 2024 1:02 pm
by tripleb
I just installed QLC+ a clean Ubuntu 22.04 on a Lenovo Thinkcenter M910q

Nice small PC - nearly everything fine so far:
  • network connections, automatic login
  • automatic QLC start /w web server enabled, running local in fullscreen mode and running a default qxw
  • OSC connection
  • MS Remote Desktop access from my MacBook
Currently I'm waiting for my Dummy DisplayPort Device to get rid of the Monitor, mouse and keyboard :)

What I did not get working so far: the audio input - QLC+ only shows the standard-device - however I get no inout signal

On the Ubuntu Desktop I can hear audio playback going through the inbuilt speaker or the headphone socket. The output is shown in system settings. However the input setting is a blank field with no devices.

If I open Audacity I can select the Mic device (ALSA) for input and cleary see level on the input meter

Where do I start to check my current installation, what does QLC+ need (additionally?) to list the inbuilt mic input of this M910q?

Edit:

Code: Select all

qlcplus@lighting:~$ arecord -l
**** Liste der Hardware-Geräte (CAPTURE) ****
Karte 0: PCH [HDA Intel PCH], Gerät 0: ALC294 Analog [ALC294 Analog]
  Sub-Geräte: 1/1
  Sub-Gerät #0: subdevice #0
Karte 0: PCH [HDA Intel PCH], Gerät 2: ALC294 Alt Analog [ALC294 Alt Analog]
  Sub-Geräte: 1/1
  Sub-Gerät #0: subdevice #0

Re: Ubuntu: no audio devices?

Posted: Fri May 10, 2024 1:32 pm
by tripleb
I answer myself:

with the information from http://www.qlcplus.org/forum/viewtopic.php?t=15778 I was able to get a list of the audio devices in QLC+

I.e.

Code: Select all

sudo apt-get update
sudo apt-get install libqt5multimedia5-plugins
I think this dependency should be added to the install pkg ;)