Re: [regression] Mute button LED stopped working on Lenovo X1 Extreme

From: Greg Kroah-Hartman
Date: Fri Dec 14 2018 - 12:30:44 EST


On Fri, Dec 14, 2018 at 06:20:10PM +0100, Bartosz Golaszewski wrote:
> Hi,
>
> I'm not sure what the connection is exactly but commit dcd51305cd41
> ("ALSA: hda/realtek - fix the pop noise on headphone for lenovo
> laptops") broke the mute button LED on my Lenovo X1 Extreme laptop.
>
> I don't have any more info frankly and don't even know where to start
> debugging. Other LEDs work fine. This mute button LED never had any
> entry in /sys/class/leds, I'm not sure how it's handled.
>
> Let me know if you need more debugging on my part.

There is a fix for this in the 4.19-rc tree right now. It's in Linus's
tree if you want to just use that repo, or just wait a few days and it
will be in the next 4.19.y release.

thanks,

greg k-h