I have had no sound out of my laptop since I installed Debian overtop of Windows 10. Sound worked just fine in Windows, but nothing I have done has been able to bring it back since the install.

I'm running Debian 9 on a Dell XPS 15 (9570) with XFCE on top of lightdm.

Sample Commands:


trevor@xps:~$ aplay -l
aplay: device_list:270: no soundcards found...


trevor@xps:~$ pacmd list-cards
0 card(s) available.


trevor@xps:~$ lspci -nnk | grep -A1 Audio
00:1f.3 Audio device [0403]: Intel Corporation Device [8086:a348] (rev 10)
    Subsystem: Dell Device [1028:087c]


trevor@xps:~$ lsmod | grep snd
snd_hda_intel          36864  0
snd_hda_codec         135168  1 snd_hda_intel
snd_hda_core           86016  2 snd_hda_intel,snd_hda_codec
snd_hwdep              16384  1 snd_hda_codec
snd_pcm               110592  3 snd_hda_intel,snd_hda_codec,snd_hda_core
snd_timer              32768  1 snd_pcm
snd                    86016  5 snd_hda_intel,snd_hwdep,snd_hda_codec,snd_timer,snd_pcm
soundcore              16384  1 snd


trevor@xps:~$ groups trevor
trevor : trevor cdrom floppy audio dip video plugdev netdev bluetooth lpadmin scanner bumblebee

I see a common fix of killing pulseaudio and restarting it. I have tried this, and it does nothing. PulseAudio dies, restarts, and behaves the exact same way it did before.

Does anyone have any ideas as to why my audio isn't working?


2 Answers 2


As said by ipor in the comments:

echo 'deb http://deb.debian.org/debian stretch-backports main contrib non-free' >/etc/apt/sources.list.d/stretchbackports.list

apt-get update

apt-get install linux-image-4.17.0-0.bpo.3-amd64

Maybe you will have some dependencies problem, if that is your case, try aptitude install linux-image-4.17.0-0.bpo.3-amd64 , and select 'n' until you get a good solution, then press 'y'.

Reboot at the new kernel

Good lucky


had this on a few workstations: not sure why but here is how I fixed it;

-open terminal

-type: alsamixer

you will see a graphical representation of channels and sound levels

Check on the bottom to see if 'M' is present--> if it is --> means 'mute' press M on your keyboard and voila! sound is back.

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