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

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Date:   Mon, 17 Dec 2018 13:29:11 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Takashi Iwai <tiwai@...e.de>, Hui Wang <hui.wang@...onical.com>,
        Kailang Yang <kailang@...ltek.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>
Subject: Re: [regression] Mute button LED stopped working on Lenovo X1 Extreme

pt., 14 gru 2018 o 18:30 Greg Kroah-Hartman
<gregkh@...uxfoundation.org> napisał(a):
>
> 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

Yep, it's back to normal in v4.19.10. Thanks.

Bart