linux-kernel - Re: [PATCH 1/4] ALSA: hda/realtek: fix mute/micmute LEDs for HP 855 G8

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Date:   Wed, 12 Jan 2022 13:12:49 +0300
From:   Alexander Sergeyev <sergeev917@...il.com>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     Jeremy Szu <jeremy.szu@...onical.com>, tiwai@...e.com,
        "moderated list:SOUND" <alsa-devel@...a-project.org>,
        Kailang Yang <kailang@...ltek.com>,
        open list <linux-kernel@...r.kernel.org>,
        Huacai Chen <chenhuacai@...nel.org>,
        Jian-Hong Pan <jhp@...lessos.org>,
        Hui Wang <hui.wang@...onical.com>,
        PeiSen Hou <pshou@...ltek.com>
Subject: Re: [PATCH 1/4] ALSA: hda/realtek: fix mute/micmute LEDs for HP 855
 G8

On Wed, Jan 12, 2022 at 10:45:46AM +0100, Takashi Iwai wrote:
>The problem is about the built-in drivers, or do you see the very same 
>problem even with modules?

The problem is definitely there for the built-in drivers which I've tested 
quite a lot. It's the primary usecase for me, as I tend to build minimal 
device-specific and self-contained kernels in Gentoo.

For builds with modules things are not very consistent. Live Ubuntu with an 
older (and probably vendor-patched) kernel works just fine, but when I pull 
Ubuntu kernel sources and build it with the mostly same config (including 
modules) it boots with no sound in Gentoo. Mostly same -- because I need nvme 
drivers to be built-in as I don't use initrd.

>AFAIK, quite a few AMD platforms tend to have some issues with various devices 
>showing initialization problems at the early boot. Just reloading / rebinding 
>the device later often helps.

Is it possible to do with the built-in drivers?