[Bug 74861] [hsw] Fast audio playback on Intel Haswell HDMI due to runtime pm

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=74861

Takashi Iwai <tiwai at suse.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Sound(ALSA)                 |Video(DRI - Intel)
           Assignee|perex at perex.cz              |intel-gfx-bugs at lists.freede
                   |                            |sktop.org

--- Comment #38 from Takashi Iwai <tiwai at suse.de> ---
(In reply to Daniel Fernández from comment #34)
> (In reply to Takashi Iwai from comment #33)
> > OK, thanks.  Could you add the following line and get the dump of ELD
> > contents in both good and bad cases?
> 
> ELD Dump working:
> [   20.386070] ELD00000000: 10 00 09 00 6c 12 00 00 00 00 00 00 00 00 00 00
> [   20.386072] ELD00000010: 34 a9 a7 a0 50 61 6e 61 73 6f 6e 69 63 2d 54 56
> [   20.386073] ELD00000020: 09 07 01 00 00 00 00 00 00 00 00 00 00 00 00 00
> [   20.386074] ELD00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [   20.386075] ELD00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [   20.386075] ELD00000050: 00 00 00
> 
> ELD Dump non-working:
> [   20.530389] ELD00000000: 09 07 01 00 00 00 00 00 00 00 00 00 00 00 00 00
> [   20.530392] ELD00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [   20.530393] ELD00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [   20.530394] ELD00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [   20.530395] ELD00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> [   20.530395] ELD00000050: 00 00 00
> [   20.530396] HDMI: Unknown ELD version 1

This indicates that the ELD data isn't transferred from the graphics side
properly.  That is, it's very likely an issue in i915 graphics, not in the
audio side.  Reassigning the component...

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