Well, just for the heck of it, I upgraded to one of the newer kernels to see if it would fix the issue. While it did fix the speakers muting when head phones were plugged in, it caused a different problem with the computer speaker becoming quiet and my mute button stopped working. I'll probably mess with it a bit more, but right now the other fix seems to take care of it fine.
On May 10, 2011 7:02 PM, "Steven Rosenberg" <
stevenhrosenberg@gmail.com> wrote:
> On 05/07/2011 12:14 PM, Noah Duffy wrote:
>> I just finished loading Debian 6.0 on my brand new Lenovo SL410. I
>> love this computer and so far everything seems to have worked out of
>> the box, however I am having one little issue: When I plug headphone
>> into the computer, the main speakers do not mute.
>>
>
> I had a similar issue with the Lenovo G555 (with Conexant 5069 sound
> chip), and while modifying /etc/modprobe.d/alsa-base.conf worked for me
> in Fedora 13 with 2.6.34, it only did so with an updated ALSA drivers
> package that provided version 1.0.23 of the drivers instead of the
> 1.0.21 in the kernel. I haven't been able to find this package in .deb
> -- If I understand this correctly, ALSA drivers are generally part of
> the kernel and are not available in a separate package (even though I
> was able to get such a package from a third-party repo for Fedora).
>
> Yep, even though I was running ALSA 1.0.23 at the time, it was with
> version 1.0.21 of the drivers in the kernel (again, if my understanding
> of the situation is correct).
>
> To see which version of the ALSA drivers my system was using, I ran:
>
> $ cat /proc/asound/version
>
> Output was
>
> Advanced Linux Sound Architecture Driver Version 1.0.21.
>
> It needs to be:
>
> Advanced Linux Sound Architecture Driver Version 1.0.23.
>
> I "solved" this problem by upgrading to from the stock Squeeze 2.6.32
> kernel to 2.6.37 (I'm using a Liquorix kernel, I'm pretty sure 2.6.38 in
> squeeze-backports will do this as well).
>
> Now I don't have to do anything to make sound work properly: Plugging in
> headphones mutes the speakers with no additional configuration necessary.
>
> So a newer kernel very well may solve this issue for you.
>
>
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