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Date:   Sat, 15 Jan 2022 08:55:28 +0100
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From:   Takashi Iwai <tiwai@suse.de>
To:     Alexander Sergeyev <sergeev917@gmail.com>
Cc:     Jeremy Szu <jeremy.szu@canonical.com>, tiwai@suse.com,
        "moderated list:SOUND" <alsa-devel@alsa-project.org>,
        Kailang Yang <kailang@realtek.com>,
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        Huacai Chen <chenhuacai@kernel.org>,
        Jian-Hong Pan <jhp@endlessos.org>,
        Hui Wang <hui.wang@canonical.com>,
        PeiSen Hou <pshou@realtek.com>
Subject: Re: [PATCH 1/4] ALSA: hda/realtek: fix mute/micmute LEDs for HP 855 G8
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On Fri, 14 Jan 2022 19:37:20 +0100,
Alexander Sergeyev wrote:
> 
> On Fri, Jan 14, 2022 at 05:37:42PM +0100, Takashi Iwai wrote:
> > > I assume that the referred repository is the one at [1]. I've tried
> > > 081c73701ef0 "ALSA: hda: intel-dsp-config: reorder the config
> > > table". It crashed with nearly identical logs.
> >
> > OK, then it's still something to do with the led cdev
> > unregisteration.
> >
> > Could you try the patch below?
> 
> This patch solved the BUG problem. But after unbind/bind micmute LED stopped 
> working. Speakers and mute LED are fine though.

Does the corresponding sysfs entry exist in /sys/class/leds/*?
And can you control LED over there?


> Dmesg:
> snd_hda_intel 0000:05:00.6: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0015 address=0x1fffff800 flags=0x0020]

Hmm, that looks bad.  Something must be accessing out of bound.

> snd_hda_codec_realtek hdaudioC1D0: out of range cmd 0:20:400:90170118
> snd_hda_codec_realtek hdaudioC1D0: out of range cmd 0:20:400:411111f0
> snd_hda_codec_realtek hdaudioC1D0: out of range cmd 0:20:400:270300

This seems to be a bogus COEF.  But I have no idea from where this
comes.  The values look completely wrong.

I guess you'd need to put some debug prints to trace down how those
are triggered...


Takashi