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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 14 Dec 2018 18:20:10 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Takashi Iwai <tiwai@...e.de>,
        Hui Wang <hui.wang@...onical.com>,
        Kailang Yang <kailang@...ltek.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>
Subject: [regression] Mute button LED stopped working on Lenovo X1 Extreme

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.

Best regards,
Bartosz Golaszewski