[pulseaudio-discuss] ThinkPad T-510 audio output mute LED non-workingness

Glenn Golden gdg at zplane.com
Thu Apr 2 15:37:07 PDT 2015

David Henningsson <david.henningsson at canonical.com> [2015-03-31 08:43:04 +0200]:
> On 2015-03-31 05:51, Hui Wang wrote:
> > According to my understanding, it should be the former one,  PA tells
> > the driver to "mute the audio", and the driver sets the LED accordingly.
> Yes, this is correct. More specific, the mic mute LED reflects the state of
> the "Capture Switch" mixer control (mic mute LED lit when "Capture Switch"
> is off), and the mute LED reflects the state of the "Master Playback Switch"
> (mute LED lit when "Master Playback Switch" is off).
> Any discrepancy of the above would be a kernel bug.

Ok, thanks guys!

fyi: kernel.org ML report filed here:


- Glenn

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