Plugging in headphones doesn't mute the speaker output

[Lukas]

In 9.04, when I plugged in headphones into the front panel of my computer, the speaker output was automatically muted and sound was played back via the headphones as expected. (This hasn't always worked, some kernel update about two or three months ago seemed to contain a fix.)

In 9.10, it's broken again - sound is played back via both headphones and speakers; when I select headphone output in the sound settings, nothing is played back at all.

I use the onboard sound hardware (Intel HDA audio)( of an Asus P5QL-E motherboard, which contains a Realtek ALC1200 codec, and no special modprobe options for snd-hda-intel (model=auto). Using some other model type there doesn't help.

[daf (davydm)]

Confirmed, I have this with the following similar hardware:

00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)

Problem only cropped up when I upgraded from 9.04 to 9.10

[daf (davydm)]

Ubuntu version: 9.10
kernel: 2.6.31-14-generic
alsa-base version: 1.0.20+dfsg-1ubuntu5 (there is no alsa-driver package per se)
architecture: amd64 (but I assume this will apply to others)

[Daniel T Chen (crimsun)]

Please reproduce the symptom using linux-backports-modules-alsa-karmic-generic.

[Lukas (lukas-ribisch)]

Do I have to do anything else besides installing the backports module package and reboot? If not -> bug still there.

[Daniel T Chen (crimsun)]

@Lukas
apport-collect -p alsa-base 464863

@daf
Please file a separate bug. Do *not* use apport-collect on Lukas's bug.

[daf (davydm)]

@Daniel
Please explain why I should file a separate bug for the same issue? I too have Intel HDA sound which is doing the same thing: headphone jack used to work in 9.04 and now doesn't in 9.10.
My money is on whatever I file being marked as a duplicate of this bug...

[daf (davydm)]

BTW, I've installed the backports modules, with the same level of joy as Lukas.

[Daniel T Chen (crimsun)]

Does your HDA codec (and revision) match his?

On Nov 18, 2009 1:35 PM, "daf" <email address hidden> wrote:

@Daniel
Please explain why I should file a separate bug for the same issue? I too
have Intel HDA sound which is doing the same thing: headphone jack used to
work in 9.04 and now doesn't in 9.10.
My money is on whatever I file being marked as a duplicate of this bug...

-- Plugging in headphones doesn't mute the speaker output
https://bugs.launchpad.net/bugs/464863 Y...

[Brad Figg (brad-figg)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[daf (davydm)]

This bug is still very much active in the current release (I dist-upgraded a week or two ago).

[David Henningsson (diwic)]

@daf, you should file a separate bug since your hardware might be different, which means the root causes are probably different. Use the "ubuntu-bug audio" command to file the bug. Thank you!
Closing bug according to Brad's comment.

[daf (davydm)]

Sure, I'll log another bug. I'm quite sure the problem is the same though. I also have intel-hda with the realtek codec: lsmod | grep -i hda shows:

snd_hda_codec_realtek 278750 1
snd_hda_intel 25705 1
snd_hda_codec 85984 2 snd_hda_codec_realtek,snd_hda_intel

but I don't mind opening a new one (: