Ubuntu

Stopped having sound output on laptop with Ubuntu 16.04

Asked by Inês

Hi there,

After not using my Dell XPS 12 Ultrabook laptop for a month, my sound output was gone out of the blue (both via in-built speakers and earphones). I have tried many things and seen it's even a popular issue on some Dells but haven't managed to restore sound in any form. Don't have the sound icon in the taskbar anymore and in Sound Settings both the sound output and input devices are blank. I checked with the alsamixer command and everything is unmuted and maxed.

Here's all the technical details from ALSA : http://www.alsa-project.org/db/?f=c72716747b8a1dda0e77e88648f500dbdffacba7

lspci returns:

00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
06:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)

Any help is greatly appreciated!

Inês

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actionparsnip (andrew-woodhead666) said : 		#1

Run the below command:

killall pulseaudio; rm -r ~/.config/pulse/* ; rm -r ~/.pulse*

Wait ten seconds, then run this:

pulseaudio -k

Do you then get sound OK?

Revision history for this message
Inês (ines-k) said : 		#2

Hi,

Thanks for the suggestion but no, I don't get any sound. I had tried it in the past as part of these procedures: https://help.ubuntu.com/community/SoundTroubleshootingProcedure

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Launchpad Janitor (janitor) said : 		#3

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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Inês (ines-k) said : 		#4

Hi,

I am still without sound. It came back for a bit after an update and a restart but then stopped working again according to what I already described above.

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Launchpad Janitor (janitor) said : 		#5

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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Inês (ines-k) said : 		#6

Hello,

 At the moment I continue to have no sound devices listed for both input and output in my Sound Settings.

Additional data when running aplay -L :

default
    Playback/recording through the PulseAudio sound server
null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
hdmi:CARD=HDMI,DEV=0
    HDA Intel HDMI, HDMI 0
    HDMI Audio Output
hdmi:CARD=HDMI,DEV=1
    HDA Intel HDMI, HDMI 1
    HDMI Audio Output
hdmi:CARD=HDMI,DEV=2
    HDA Intel HDMI, HDMI 2
    HDMI Audio Output
dmix:CARD=HDMI,DEV=3
    HDA Intel HDMI, HDMI 0
    Direct sample mixing device
dmix:CARD=HDMI,DEV=7
    HDA Intel HDMI, HDMI 1
    Direct sample mixing device
dmix:CARD=HDMI,DEV=8
    HDA Intel HDMI, HDMI 2
    Direct sample mixing device
dsnoop:CARD=HDMI,DEV=3
    HDA Intel HDMI, HDMI 0
    Direct sample snooping device
dsnoop:CARD=HDMI,DEV=7
    HDA Intel HDMI, HDMI 1
    Direct sample snooping device
dsnoop:CARD=HDMI,DEV=8
    HDA Intel HDMI, HDMI 2
    Direct sample snooping device
hw:CARD=HDMI,DEV=3
    HDA Intel HDMI, HDMI 0
    Direct hardware device without any conversions
hw:CARD=HDMI,DEV=7
    HDA Intel HDMI, HDMI 1
    Direct hardware device without any conversions
hw:CARD=HDMI,DEV=8
    HDA Intel HDMI, HDMI 2
    Direct hardware device without any conversions
plughw:CARD=HDMI,DEV=3
    HDA Intel HDMI, HDMI 0
    Hardware device with all software conversions
plughw:CARD=HDMI,DEV=7
    HDA Intel HDMI, HDMI 1
    Hardware device with all software conversions
plughw:CARD=HDMI,DEV=8
    HDA Intel HDMI, HDMI 2
    Hardware device with all software conversions

Any suggestions are super appreciated!

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Launchpad Janitor (janitor) said : 		#7

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

Revision history for this message
Inês (ines-k) said : 		#8

Hi,

I have tried a bunch of things but I still can't get my system to display a sound output to play sound from.

Any help is super appreciated

Revision history for this message
Launchpad Janitor (janitor) said : 		#9

This question was expired because it remained in the 'Open' state without activity for the last 15 days.