I've installed Ubuntu 10.04 yesterday on Lenovo G460. I'm unable to fix this problem after lot of tries in changing model in /etc/modprobe.d/alsa-base.conf to thinkpad/auto/lenovo and many things.
Can anyone please help me out with this?
I had the same issue. It appears that the new kernel did not correctly detect the sound card model that you have. You will have to edit the /etc/modprobe.d/alsa-base.conf file and set the model manually with
Unfortunately, finding the correct sound card model can take a little guess work. I took me several tries to find the sound card model that would detect the headphones correctly.
This link gives a list of sound card model: http://ubuntuforums.org/showthread.php?t=1043568
More information can be found on the Ubuntu Wiki: https://help.ubuntu.com/community/HdaIntelSoundHowto
I have something like this going on with my Sony VPCZ114GX, there is a workaround posted for my model at this bug report: https://bugs.launchpad.net/bugs/960124 Basically involves loading up David Henninsson's hda-jack-retask from his ppa at https://launchpad.net/~diwic/+archive/hda and then try Wouter van der Graaf's workaround on comment #7.
As for getting the model of your sound card, I tried the below. Although the problem may be that your machine doesn't know what model to use for sound in the first place.
Then to get the model to put in alsa-base.conf:
$ gunzip -c /usr/share/doc/alsa-base/driver/HD-Audio-Models.txt.gz |grep -i "alc889"
I had the same problem after upgraging to 12.04 on my Acer Extensa machine. Changing options of the
So my solution was to launch
Hope that help.
Updade: the exact name of the option is "Auto-Mute Mode"