Re: NOT QUITE: headphones still don't work.
On Tue, 17 Sep 2013 09:40:05 +0200, Martin Steigerwald wrote:
> Hi Hendrik,
>
> Am Dienstag, 17. September 2013, 00:32:49 schrieb Hendrik Boom:
>> On Tue, 17 Sep 2013 00:02:29 +0000, Hendrik Boom wrote:
>> > On Mon, 16 Sep 2013 21:43:21 +0100, Klaus wrote:
>> >> Can this be another instance of a muted Master switch? What do get
>> >> for:
>> >>
>> >> $ amixer info $ amixer contents $ amixer scontents
>> >>
>> >> See the amixer man page for how to un-mute using CLI.
>> >> Or try alsamixer, pressing "M" toggles muting.
>> >
>> > Yes, pressing 'M' on alsamixer did the trick.
>>
>> But sound turns off as soon as I plug the headphones in, and on again
>> when I unplug them. I expected to be able to hear sound through the
>> headphones.
>
> Well unmute them as well?
That is the obvious thing to do.
But alsamixer doesn't seem to have a separate slider for the headphones.
Or else I just don't know how to find it.
And when I use amixer to give me a list of the available ccontrols, I get:
hendrik@notlookedfor:~$ amixer controls
numid=4,iface=MIXER,name='Master Playback Switch'
numid=3,iface=MIXER,name='Master Playback Volume'
numid=2,iface=MIXER,name='Capture Switch'
numid=1,iface=MIXER,name='Capture Volume'
hendrik@notlookedfor:~$
There's nothing here to suggest there's a separate control for the
headphones.
Yet something is detecting the headphones, because the speakers shut off
when I plug them in and trn on again when I unplug them. And the
headphones themselves work fine on other devices, such as my ASUS TF101,
an Android tablet.
> I have this issue as well. Once I press the mute button on this ThinkPad
> T520 both are muted, but when I press it again, they are not unmuted, so
> I have to do this manually via alsamixer.
How *do* you do it?
-- hendrik
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