Arch Linux

AliMirsalari

Member

Registered: 2024-05-16

Posts: 3

Help Needed: Mute Button LED Not Working on Laptop

Hi everyone,
I'm experiencing an issue with my laptop's mute button. When I press the mute button, it successfully mutes the audio, but the LED indicator does not turn on or off as expected.
I've read through the Arch Wiki, but I'm still unclear on what steps I should take to resolve this problem. Could someone please provide some guidance?
Here is the link to the relevant section of the Wiki: Arch Wiki - Audio Mute LED

Output of grep Codec /proc/asound/card*/codec*:

/proc/asound/card0/codec#0:Codec: Conexant CX8070
/proc/asound/card0/codec#2:Codec: Intel Raptor Lake P HDMI

Thank you for your help!

mtommy2008

Member

Registered: 2024-05-17

Posts: 1

Re: Help Needed: Mute Button LED Not Working on Laptop

Hi everyone,
I'm experiencing an issue with my laptop's mute button. When I press the mute button, it successfully mutes the audio, but the LED indicator does not turn on or off as expected.
I've read through the Arch Wiki, but I'm still unclear on what steps I should take to resolve this problem. Could someone please provide some guidance?
Here is the link to the relevant section of the Wiki: Arch Wiki - Audio Mute LED

Output of grep Codec /proc/asound/card*/codec*:

/proc/asound/card0/codec#0:Codec: Conexant CX8070
/proc/asound/card0/codec#2:Codec: Intel Raptor Lake P HDMI

Thank you for your help!

Can anyone answer this question? I'm looking for a solution because I have the same problem. If anyone has one, please tag me. Thanks a lot.

jl2

Member

From: 47° 18' N 8° 34' E

Registered: 2022-06-01

Posts: 1,248

Re: Help Needed: Mute Button LED Not Working on Laptop

I'm experiencing an issue with my laptop's mute button.

what laptop do you have? I think it would help quite a bit.
Can you find the led in /sys/class/leds? (I am probably going in the wrong direction here)
And also a journal for the boot: 'journalctl -b0 | curl -F 'file=@-' 0x0.st'

mtommy2008: same questions for you! It wouldn't wonder me if these are 2 completely different cases.
And please don't quote WHOLE messages, waste of resources especially here.
You can subscribe to this topic on the bottom-right, and then you'll get a email when there's a new post.

Last edited by jl2 (2024-05-17 07:32:58)

---

Why I run Arch? To "BTW I run Arch" the guy one grade younger.
And to let my siblings and cousins laugh at Arsch Linux...

Upload longer text output like this

AliMirsalari

Member

Registered: 2024-05-16

Posts: 3

Re: Help Needed: Mute Button LED Not Working on Laptop

what laptop do you have?

ThinkPad E16 gen 1

Can you find the led in /sys/class/leds?

Yup, there is a directory which is called platform::mute, that I think is related to the button.

And also a journal for the boot: 'journalctl -b0 | curl -F 'file=@-' 0x0.st'

Here you are: https://0x0.st/XPZY.txt

jl2

Member

From: 47° 18' N 8° 34' E

Registered: 2022-06-01

Posts: 1,248

Re: Help Needed: Mute Button LED Not Working on Laptop

some links I found:
* https://github.com/linuxmint/linuxmint/issues/621
* https://bugzilla.kernel.org/show_bug.cgi?id=218742
These are quite recent, but for the micmute.
does you're micmute work?

Yup, there is a directory which is called platform::mute, that I think is related to the button.

So you can manually turn it on with:
echo 1 | sudo tee /sys/devices/platform/thinkpad_acpi/leds/platform::mute/brightness
?

Last edited by jl2 (2024-05-17 12:43:04)

---

Why I run Arch? To "BTW I run Arch" the guy one grade younger.
And to let my siblings and cousins laugh at Arsch Linux...

Upload longer text output like this

AliMirsalari

Member

Registered: 2024-05-16

Posts: 3

Re: Help Needed: Mute Button LED Not Working on Laptop

These are quite recent, but for the micmute.
does you're micmute work?

Thank you so much. Yes everything but the LED works.

So you can manually turn it on with:
echo 1 | sudo tee /sys/devices/platform/thinkpad_acpi/leds/platform::mute/brightness
?

Yup, it turns it on.

What should I do now?

jl2

Member

From: 47° 18' N 8° 34' E

Registered: 2022-06-01

Posts: 1,248

Re: Help Needed: Mute Button LED Not Working on Laptop

Depending on your DE/DM you could try binding multiple actions and set the mute led via that.

listening for volume changes isn't possible (at least with pipewire/wireplumber):  https://gitlab.freedesktop.org/pipewire … issues/651

Else, least you can do is somehow subscribe to the kernel issue.

Last edited by jl2 (2024-05-22 12:36:08)

---

Why I run Arch? To "BTW I run Arch" the guy one grade younger.
And to let my siblings and cousins laugh at Arsch Linux...

Upload longer text output like this