Sunday, June 6, 2021
Dell Latitude 3410 No Audio Dummy Output
Was helping out a friend with their Dell Latitude 3410 not having any sound. To check, just play any video on YouTube on a browser. You see the video playing but can't hear any sound even though the sound control isn't muted. The laptop had Ubuntu 18.04 installed. When you check the Sound under Settings, you only see Dummy Output so you can't even test.
Tried a lot of fixes suggested online. But the only one that seemed to work for this particular situation was the following.
You have to edit the "alsa-base.conf" file as a super user using the following command on a terminal.
sudo gedit /etc/modprobe.d/alsa-base.conf
When the text file opens, add the following lines at the very bottom
options snd-hda-intel model=auto
options snd-hda-intel dmic_detect=0
Save your changes by clicking on "Save" then reboot your laptop.
I tried playing the same YouTube video and sound was now present.
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