Sound from speakers stopped working after headphones

Hi,

I have plugged in the headphones Jack headphones for the first time and after I unplugged them the sound from the speakers stopped working.
Tried to reboot without help.

Update: I have timeshifted to an earlier stage, and after 2 reboots everything is back to normal.
I can reproduce the issue at any time, if someone is willing to give an advice or take a look.

Some output:

inxi -Fxxza
Audio:     Device-1: Intel Cannon Lake PCH cAVS vendor: Hewlett-Packard driver: snd_hda_intel v: kernel 
           alternate: snd_soc_skl,snd_sof_pci bus ID: 00:1f.3 chip ID: 8086:a348 
           Device-2: Plantronics BT600 type: USB driver: plantronics,snd-usb-audio,usbhid bus ID: 3-1.3.1:6 chip ID: 047f:02ee 
           serial: <filter> 
           Device-3: HP USB Audio type: USB driver: hid-generic,snd-usb-audio,usbhid bus ID: 3-1.3.5:8 chip ID: 03f0:0269 
           serial: <filter> 
           Sound Server: ALSA v: k5.10.12-116-tkg-bmq
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CX11970 Analog [CX11970 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: BT600 [Plantronics BT600], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: Headset [Thunderbolt Dock Audio Headset], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

With three audio outputs (and those of different types) it's quite possible Pulseaudio is getting confused.

Possibly, audio outputs are not being unmuted?

Try pavucontrol as this provides a good interface for configuring audio settings unaffected by specific quirks of desktop environments.

  1. Look through the settings before and after and see if there is an obvious difference.
  2. Also try without the USB outputs connected.
3 Likes

Or outputs being switched. Check your sound settings.

3 Likes

I managed to reverse back using timeshift and couple of reboots.
I will try again in the following days if this happens again.