linux-kernel - snd_hda_intel 0000:00:1f.3: No response from codec, resetting bus: last cmd=

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Date:   Mon, 4 Nov 2019 13:57:54 +0100
From:   Paul Menzel <pmenzel@...gen.mpg.de>
To:     Andreas Noever <andreas.noever@...il.com>,
        Michael Jamet <michael.jamet@...el.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Yehezkel Bernat <YehezkelShB@...il.com>
Cc:     Christian Kellner <ck@...om.net>, intel-gfx@...ts.freedesktop.org,
        Takashi Iwai <tiwai@...e.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Mario Limonciello <mario.limonciello@...l.com>
Subject: snd_hda_intel 0000:00:1f.3: No response from codec, resetting bus:
 last cmd=

Dear Linux folks,


On the Dell XPS 13 9380 with Debian Sid/unstable with Linux 5.3.7
resuming0with Dell’s Thunderbolt TB16 dock connected, Linux spews
the errors below.

```
[    0.000000] Linux version 5.3.0-1-amd64 (debian-kernel@...ts.debian.org) (gcc version 9.2.1 20191008 (Debian 9.2.1-9)) #1 SMP Debian 5.3.7-1 (2019-10-19)
[…]
[    1.596619] pci 0000:00:1f.3: Adding to iommu group 12
[   14.536274] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002)
[   14.544100] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[   14.760751] input: HDA Intel PCH Headphone Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input16
[   14.760790] input: HDA Intel PCH HDMI as /devices/pci0000:00/0000:00:1f.3/sound/card0/input17
[  156.614284] snd_hda_intel 0000:00:1f.3: No response from codec, disabling MSI: last cmd=0x20270503
[  157.622232] snd_hda_intel 0000:00:1f.3: No response from codec, resetting bus: last cmd=0x20270503
[  158.626371] snd_hda_intel 0000:00:1f.3: No response from codec, resetting bus: last cmd=0x20370503
[  159.634102] snd_hda_intel 0000:00:1f.3: No response from codec, resetting bus: last cmd=0x201f0500
[  161.678121] snd_hda_intel 0000:00:1f.3: No response from codec, resetting bus: last cmd=0x20270503
[  162.682272] snd_hda_intel 0000:00:1f.3: No response from codec, resetting bus: last cmd=0x20370503
[  163.694234] snd_hda_intel 0000:00:1f.3: No response from codec, resetting bus: last cmd=0x201f0500
[  165.730142] snd_hda_intel 0000:00:1f.3: No response from codec, resetting bus: last cmd=0x20270503
[…]
```

In the bug report *[Intel Ice Lake, snd-hda-intel, HDMI] "No
response from codec" (after display hotplug?)* [1], note it’s a
different model, Takashi comments that this is a Thunderbolt or
i915 issue.

Please tell me, how to debug this further.


Kind regards,

Paul


[1]: https://bugzilla.kernel.org/show_bug.cgi?id=205229
     "205229 - [Intel Ice Lake, snd-hda-intel, HDMI] "No response from codec" (after display hotplug?)"

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