Sound not coming out of headphones in Mint 18 cinnamon/ Fedora 24; speakers work fine

Question

The interesting thing is that the speakers on my computer work just fine. However, if I plug in my headphones, no sound comes out. The computer is a 2011 21.5 inch, i5 IMac, the specs of which can be found here.

Solutions Attempted:

• Adding options snd-hda-intel model=generic to my /etc/modprobe.d/alsa-base.conf and restarting. This did not fix the problem.

• Opening up the alsamixer command in terminal and making sure that my headphones aren't muted there. They were not muted. .

• Adding a Fedora 24 partition to my system. I am not able to use my headphones in that partition either.

Solution 1

I tried digging again, and I found a solution on Fedora 24:

1. Create the file /etc/modprobe.d/sound.conf

2. Add options snd_hda_intel model=imac27_122 to the file

3. Reboot

Note: The subsystem ID is 8086:7270.

Solution 2

I get that it might no longer be relevant for you, but for other people coming running into this problem, I've had the same, took me days to figure out, but now I have got a very simple solutions that works well (I've reinstalled ubuntu so had to do it all again and kinda know the drill now):

This fix should work for every 2011 iMac 27 and 21 inch alike:

first open up terminal and enter:

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

and add to the last line of the file:

options snd-hda-intel model=imac27_122

control+x - y to safe and then do the same in:

sudo nano /etc/modprobe.d/sound.conf

and again add to the last line:

options snd-hda-intel model=imac27_122

close and save it again, and reboot :)

(you have to add the iMac27_122 to both of the files or it still does nothing, though you might have changed one of the 2 already following other peoples instructions, I have to do this for every linux version I install, and I've already tried a few, none of them allow sound through the headphones on default)

if after this it still doesn't work type in terminal (don't undo your previous changes): alsamixer and unmute all the muted channels with "M"

Comments

[agc]

Are the headphones, and the headphone jack on the PC, both known to work?

[FabulousGlobe]

@agc Yup. Before booting up linux mint they worked without issue on Mac OS 10.11. They continue to work well if I switch over to my OSX partition.

[Anthony Geoghegan]

Great first post! Welcome to Unix & Linux!