speaker-test returns all 6 channels to front speakers

OS: KUBUNTU 19.04 Soundcard: Creative Soundblaster ZxR Sound Setup: front (left/right), center, bass, rear (left/right)

My problem is, that all speaker outputs are played at the front speakers.

I did the following:

  • Set speaker setup at Plasma sound settings to “Analog Surround 5.1-Output + Analog Stereo-Input”
  • If I click on any rear speaker there, to test audio output, they are played on front speakers. The setup seems very faulty:
    • rear right: output on front left and right at the same time
    • rear left: output on front left and right at the same time
    • center: output on front left and right at the same time
    • front left: output on front left (one of two correct speakers)
    • front right: output on front right (one of two correct speakers)
  • I then executed alsamixer and noticed that my NVIDIA Graphics card was initially selected. I switched with F6 to my ZxR and set it up like this: enter image description here
  • I ran speaker-test -Dplug:surround51 -c6 -twav. An error message appeared and I was unable to perform the command: Error when opening the device: -2
  • I googled how to set the default device and so I did cat /proc/asound/cards:
 0 [NVidia         ]: HDA-Intel - HDA NVidia                       HDA NVidia at 0xdf080000 irq 17  1 [Creative       ]: HDA-Intel - HDA Creative                       HDA Creative at 0xdf204000 irq 19 

with kate ~/.asoundrc I set my default device:

defaults.pcm.card 1 defaults.ctl.card 1 defaults.timer.card 1 
  • after a restart speaker-test -Dplug:surround51 -c6 -twav was working: Unfortunately rear left output is on front left, rear right output is on front right, center appears to be on both front (left/right) speakers

Does anyone have any idea how I can fix this?

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Ubuntu 19.04 on HP Pavilion x360 14-ba125cl snd-hda-intel Realtek ALC295, Bang and Olufsen, No sound from speakers

This is the laptop

https://www.costco.com/HP-Pavilion-x360-14%22-Touchscreen-2-in-1-Laptop—Intel-Core-i5—1080p—Bonus-HP-Digital-Pen.product.100431724.html

System comes pre-installed with Windows 10 and sound works fine in Windows.

I installed Ubuntu 19.04 but the sound is not working

The sound card is Intel and the Chipset is Realtek ALC295

Sound works when using the headphone but no sound from the internal speakers

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enter image description here

And as device I am using an FM-Radio Module (TEA5767)

enter image description here

But instead of connecting the module to an external speaker, I would like to use my computer’s built-in speakers. Do you know how to do that on Ubuntu 18.04.2? Apparently something similar can be done on MAC OS, https://www.instructables.com/id/How-to-play-your-devices-audio-through-your-compu/

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like the title says, I can’t seem to auto-mute the speakers if I plug in my headphones. I’ve checked in alsamixer but it doesn’t even have a headphones section and I’ve tried the workaround posted here a couple of years ago adding the lines

alias snd-card-0 snd-hda-intel alias sound-slot-0 snd-hda-intel options snd-hda-intel model=dell-m4-1 enable_msi=1 

in the alsa-base.conf file but it didn’t work.