[alsa-devel] [PATCH] ALSA: hda - Fix Dock Headphone on Thinkpad X250 seen as a Line Out

[David Henningsson]

On 2015-06-24 13:23, Raymond Yau wrote:
>
>  >>>
>  >>> Thinkpad X250, when attached to a dock, has two headphone outs but
>  >>> no line out. Make sure we don't try to turn this into one headphone
>  >>> and one line out (since that disables the headphone amp on the dock).
>  >>>
>  >>> Alsa-info at
> http://www.alsa-project.org/db/?f=36f8764e1d782397928feec715d0ef90dfddd4c1
>  >>>
>  >>> Cc: stable at vger.kernel.org <mailto:stable at vger.kernel.org>
>  >>> Signed-off-by: David Henningsson <david.henningsson at canonical.com
> <mailto:david.henningsson at canonical.com>>
>  >>
>  >>
>  >> This is one of fixes I had in mind (and asked for testing in bugzilla
>  >> kernel.org <http://kernel.org> report).
>  >
>  >
>  > Sorry, I'm missing context. What report?
>
> https://bugzilla.kernel.org/show_bug.cgi?id=99721

Thanks.

> T440 support headset and thinkpad pro dock combo jack has headset icon
>
> If headset mic has higher priority than dock headset mic, it is strange
> that headset don't auto mute dock headset

So headphones should automute between each other if and only if both of 
them are combined headset jacks? Or what do you suggest?

-- 
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic