I am trying to install a Logitech c920S Pro webcam on a Dell box.
I have installed Cheese and the video and recording sound appear correct. Looking at PAVControl (input devices), OrbiCam Dig. Stereo (IRC958) is correctly showing input.
The PAVControl (output devices) Port shows "HDMI/Display Port (plugged in) and no sound is played for instance from a Cheese recording.
If I play a file and direct the output to an auxiliary headset … Port: Headphones (plugged-in) then the sound works correctly.
The PAV configuration is set as follows:
TU116 High Definition Audio Controller … Digital Stereo (HDMI) Output
Built-In Audio … Analog Stereo Output
OrbiCam … Digital Stereo (IEC958) Input
I have tried a number of config options without success.
In Alsamixer all modes appear to be on and Auto-Mut and Loopback are ‘Disabled’.
PulseAudio data for the HDMI output is the same as in your OP active profile: output:hdmi-stereo
presumably there are speakers in the display monitor (or a headphone jack) to be able to listen to audio
The webcam appears to be no different to OP 'active profile: input:iec958-stereo'
but there is another port option available
First, something basic … neither my Dell box nor my monitor have any I/O capability … no speakers and no mics. No Bluetooth or headphones are connected.
My PulseAudio information:
In the Configuration OrbiCm is shown with a 'Digital Stereo (IEC958) Input
TU116 High Def Audio Controller is shown as Digital Stereo (HDMI) Output
Built-in Audio is shown as Off and all options are shown as unavailable
Looking at my Input Devices. 3 Devices are shown … only 1 appears actiive.
The OrbiCam Digital Stereo (IEC958) on Port: Digital Input (S/PDIF) is Active and appears to be working correctly.
Output Devices … this is the bit that is not working:
There is only 1 option;
TU116 High Def. Audio Contr. Digital Stereo (HDMI)
with Port HDMI/Display Port (Plugged In)
If you have nothing connected to your system to hear audio playback your audio software could be working with no problem
PulseAudio is detecting the HDMI connection from your nVidia graphics card (TU116) to your monitor (VP2768-4k) and sending audio to the monitor. @binarydepth mentioned before that this would only work if the monitor had speakers or a headphone socket to hear the audio playing
If you want to hear audio playback using the headphone or speaker jack sockets instead:
go to PulseAudio Volume Control Configuration tab
change the Profile for the Onboard Audio (Cannon Lake PCH) from Off to Analog Stereo Output
The goal here is simply to have the webcam operate correctly with input and output sound. I am not expecting the webcam to double as an independent speaker unit but simply to function for web communication.
As you have proposed I modified the PA config:
TU116 High Def Audio Cont. is now off all other settings are unavailable.
Orbicam is now Digital Stereo (IEC958) Input
Built-In Audio is also set to off
The input devices still is shown with OrbiCam (Digital Input (S/PDIF) and appears to be working correctly and shows as a Hardware Input Device.
The output devices only has the single option ‘Simultaneous output’.
When I start Cheese video is working and PA shows sound input correctly but there is no device shown in the Recording tab. When I start to record a video then Cheese locks up.
Thanks for the response … I have opened-up the /default.pa and see the lines that you are referencing … not sure however what input I should give to those lines … could you provide an example that is relevant to a webcam (preferably OrbiCam)
That is not possible. Your webcam has a microphone for audio capture but it has no built-in speaker or headphone socket for audio playback
Webcam has 2 sources analog-input-mic and iec958-stereo-input
but has 0 sinks for audio output
you can set the webcam to be the default source for recording audio
but webcam cannot be set as the default sink for playing audio because there is no sink output
simultaneous output option is to send audio playback to more than one output
This is useless for your system because the only audio output device that you could use for hearing audio playback would be from the onboard audio device
(headphone jack on front of desktop box or speaker jack on rear)
but that is set to Off
You need to remove this simultaneous output by undoing whatever you did to add it in the first place
if you installed a package paprefs to turn simultaneous output on, check all the tabs to make sure none of the boxes are ticked
but there are a other ways that this module can be added so you may need to work out how to reverse the process you used to add it
I did not expect to see simultaneous output added to your system and I am wondering what other changes you might have made that you have not told us about
I do now realize (for the first time) that my webcam has no audio output. I do have a bluetooth speaker that I will try to make functional. Anyway here is the output that you requested and if you see anything that would be helpful your advice would be appreciated.