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    SubjectRe: [PATCH 1/4] ALSA: hda/realtek: fix mute/micmute LEDs for HP 855 G8
    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

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