Comment 41 for bug 114053

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a-kat (alexander-katovsky) wrote : Re: snd_hda_intel (alc883 chipset) does not perform jack sense

I had this problem on a Fujitsu Siemens Amilo computer. I solved the problem by installing the latest Alsa driver (see instructions at https://help.ubuntu.com/community/HdaIntelSoundHowto). Maybe this is unnecessary. Then I used cat /proc/asound/card0/codec\#*|grep Codec with result

Codec: Motorola Si3054
Codec: Realtek ALC883

then went to http://www.mjmwired.net/kernel/Documentation/sound/alsa/ALSA-Configuration.txt and searched for ALC883 and found many options. Luckily, someone else tried them for me; and found that adding

options snd-hda-intel model=acer

to the end of the file /etc/modprobe.d/alsa-base

and restarting the computer fixes the problem. I found that, finally, the contents of gnome-volume-manager changed and that the headphones were working!