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Fuxy

Member

Registered: 2015-10-17

Posts: 6

No 5.1 sound output without plugging anything in the LineOut jack

Until recently i way able to get sound to my 5.1 sorround speakers just by plugging in all the required cable at the back of my motherboar specifically the ones labeled side, rear, c/sub.

However today (updated a few days ago just restarted) for some odd reason I needed to plug something in the Line Out jack for it to show up as a valid sink and output sound to my surround system.

Also now it outpus sound on both Line Out and the side, rear c/sub while before if I pluged something in on Line Out it would not output on anything else.

Can someone elighten me how I could make it detect my sorround speakers without having to plug in anything else?

Although having  headphones constantly available runnig is handy if I ever want switch requireing them has to be a bug.

This is how it looks with Line Out plugged in and working

$ lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 04)
04:00.1 Audio device: NVIDIA Corporation GK110 HDMI Audio (rev a1)

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC1150 Analog [ALC1150 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC1150 Digital [ALC1150 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: Mic [Samson Meteor Mic], device 0: USB Audio [USB Audio]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

pacmd list-sinks | grep -e 'name:'  -e 'alsa.device ' -e 'alsa.subdevice ' -e 'index'
    index: 0
	name: <alsa_output.pci-0000_04_00.1.hdmi-stereo-extra2>
		alsa.subdevice = "0"
		alsa.device = "8"
    index: 1
	name: <alsa_output.usb-Samson_Technologies_Samson_Meteor_Mic-00.analog-stereo>
		alsa.subdevice = "0"
		alsa.device = "0"
  * index: 6
	name: <alsa_output.pci-0000_00_1b.0.analog-surround-51>
		alsa.subdevice = "0"
		alsa.device = "0"

This is how it looks without it plugged in and not working at all

pacmd list-sinks | grep -e 'name:'  -e 'alsa.device ' -e 'alsa.subdevice ' -e 'index'
    index: 0
	name: <alsa_output.pci-0000_04_00.1.hdmi-stereo-extra2>
		alsa.subdevice = "0"
		alsa.device = "8"
    index: 1
	name: <alsa_output.usb-Samson_Technologies_Samson_Meteor_Mic-00.analog-stereo>
		alsa.subdevice = "0"
		alsa.device = "0"
  * index: 7
	name: <alsa_output.pci-0000_00_1b.0.iec958-stereo>
		alsa.subdevice = "0"
		alsa.device = "1"

It simply thinks there's nothing plugged in by the looks of it.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,435

Re: No 5.1 sound output without plugging anything in the LineOut jack

Might've been a bit of a switch  due to an ALSA/kernel update, can you not simply switch the profile to analog-surround-51 manually? That should stick usually. Check the configuration tab of pavucontrol or 

pacmd set-card-profile alsa_output.pci-0000_00_1b.0 analog-surround-51

Fuxy

Member

Registered: 2015-10-17

Posts: 6

Re: No 5.1 sound output without plugging anything in the LineOut jack

Thx for that tip while the command didn't work manually selecting the profile in in the configuration tab of pavucontrol did work.

You probably ment something like this right

pacmd set-card-profile alsa_card.pci-0000_00_1b.0 output:analog-surround-51

(this works)

Anyway I notice something odd. While the Line Out jack is unplugged pavucontrol says the output:analog-surround-51 profile is unplugged/unavailable while the output:analog-surround-51+input:analog-stereo profile is reported as ok.

That is some rally odd behaviour however selecting any of the 2 profiles works just fine

The only annoying thing is because of this faulty detection cinamon will allways autoselect the wrong sound profile from now on when I pug or unplug jacks from the computer it.

Is this detection issue a confirmed bug?