linux-kernel - Re: [ibm-acpi-devel] ThinkPad T480s & LED_MUTE, LED

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Date:   Sat, 23 Jun 2018 14:46:39 +0200
From:   Damjan Georgievski <gdamjan@...il.com>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     Pali Rohár <pali.rohar@...il.com>,
        ibm-acpi-devel@...ts.sourceforge.net,
        Henrique de Moraes Holschuh <ibm-acpi@....eng.br>,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org
Subject: Re: [ibm-acpi-devel] ThinkPad T480s & LED_MUTE, LED_MICMUTE

On 21 June 2018 at 13:39, Takashi Iwai <tiwai@...e.de> wrote:
> On Thu, 21 Jun 2018 13:35:21 +0200,
> Damjan Georgievski wrote:
>>
>> > I applied them to Debian's kernel (with slightly modification) and they
>> > are working fine. Via "alsamixer -c 0" I can change "Mic Mute-LED Mode"
>> > to "Follow Capture" and then led is ON only when microphone is ON.
>> > Recording from microphone is working in both configurations.
>>
>> hm this is the opposite of how it works on my T450s and X1, where the
>> led is ON when microphone is muted.
>> (I do wish the led would be ON when the microphone is not muted ie. listening)
>
> Don't worry, it's still the default behavior ("Follow Mute").
> Only when user chooses another mode (e.g. "Follow Capture"), the
> behavior changes.

Yeah, sorry, I didn't notice that the topic changed in the thread.

Anyways, I was intrigued and applied the patches on top of 4.18.0-rc1
and I can report it works fine on X1 Carbon (5th gen).



-- 
damjan