No more sound in Ubuntu 18.04 HP Envy

this is the first time I am posting here but I am kind of desperate.

I don't have any more sound on my laptop, only "Dummy output" whereas it was working fine yesterday. I tried several methods, uninstalling and reinstalling alsa and pulseaudio then force reload, stop win10 from hibernating, literally everything I could find on the internet. Here are some unsuccessful solutions I tried :

• No sound on Ubuntu 18.04
• Ubuntu 18.04.1 LTS, Dummy output, no sound
• No sound in Ubuntu 18.04 HP notebook

I have a dual boot Win10/Ubuntu 18.04. Here are some information that could be useful for you :

wob@hp-envy:~$ inxi -SMA
System: Host: hp-envy Kernel: 5.3.0-42-generic x86_64 bits: 64 Desktop: Gnome 3.28.4 Distro: Ubuntu 18.04.4 LTS
Machine: Device: laptop System: HP product: HP ENVY Laptop 13-aq0xxx v: Type1ProductConfigId serial: N/A Mobo: HP model: 85E2 v: 29.27 serial: N/A UEFI: Insyde v: F.08 date: 08/15/2019
Audio: Card Intel Device 9dc8 driver: snd_soc_skl Sound: Advanced Linux Sound Architecture v: k5.3.0-42-generic
wob@hp-envy:~$ inxi -SMA | cs
wob@hp-envy:~$ alsamixer
cannot open mixer: No such file or directory
alexis@hp-envy:~$ pulseaudio
E: [pulseaudio] pid.c: Daemon already running.
E: [pulseaudio] main.c: pa_pid_file_create() failed.

If you have any idea of a process to find more information about what is wrong and/or how I could fix this, please help me. Thank you !

1 Answer

I found the solution.

sudo gedit /etc/modprobe.d/alsa-base.conf

Add the following line to the end of this file:

options snd-hda-intel dmic_detect=0

Save and close the file and reboot your system. You should have the audio back.

Reboot

Regards