[Bug 104952] [regression] Loss of i915 (Apollo Lake/Broxton) HDMI audio after display sleep v4.14+

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104952

--- Comment #23 from me at rustyx.org ---
Getting the same error in 4.4 on Kaby Lake.
Is it related to this issue or is it something else?

[    3.021279] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops
i915_audio_component_bind_ops [i915_bpo])
[    3.068792] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC892:
line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:line
[    3.068795] snd_hda_codec_realtek hdaudioC0D0:    speaker_outs=0
(0x0/0x0/0x0/0x0/0x0)
[    3.068796] snd_hda_codec_realtek hdaudioC0D0:    hp_outs=1
(0x1b/0x0/0x0/0x0/0x0)
[    3.068797] snd_hda_codec_realtek hdaudioC0D0:    mono: mono_out=0x0
[    3.068798] snd_hda_codec_realtek hdaudioC0D0:    inputs:
[    3.068800] snd_hda_codec_realtek hdaudioC0D0:      Front Mic=0x19
[    3.068801] snd_hda_codec_realtek hdaudioC0D0:      Rear Mic=0x18
[    3.068802] snd_hda_codec_realtek hdaudioC0D0:      Line=0x1a
[    3.092264] input: HDA Intel PCH Rear Mic as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input12
[    3.102750] input: HDA Intel PCH Line as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input13
[    3.102795] input: HDA Intel PCH Line Out as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input14
[    3.102840] input: HDA Intel PCH HDMI/DP,pcm=3 as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input15
[    3.102887] input: HDA Intel PCH HDMI/DP,pcm=7 as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input16
[    3.102926] input: HDA Intel PCH HDMI/DP,pcm=8 as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input17

. . .

[ 2720.133324] snd_hda_intel 0000:00:1f.3: azx_get_response timeout, switching
to polling mode: last cmd=0x206f0100
[ 2721.141237] snd_hda_intel 0000:00:1f.3: No response from codec, disabling
MSI: last cmd=0x206f0100
[ 2722.149139] snd_hda_intel 0000:00:1f.3: azx_get_response timeout, switching
to single_cmd mode: last cmd=0x206f0100
[ 2722.149270] azx_single_wait_for_response: 69 callbacks suppressed

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