[Bug 105848] [KBL] Distortion Noisy Audio when continuously resolution changed on DisplayPort...

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105848

--- Comment #9 from Abhijeet Kumar <abhijeet.kumar at intel.com> ---
Hi jani,
Is there anything else which we should provide along with the above info ?


And a quick question-
Can anyone help me in understanding why "output channel map" register not being
configured in noisy case. Which driver does actually touches it ? I couldn't
find it in sourcecode for some reason :/

AUD_OUT_CHAN_MAP     (0x65088) 0x00000000  Audio Output Channel Mapping

https://elixir.bootlin.com/linux/v4.16/source/sound/soc/codecs/hdac_hdmi.c#L372
And the above piece of code always setup the channel map while setting up the
audio infoframe. So does that mean there was a functional reset after setting
up infoframe which ultimately removed channel ID from AUD_OUT_CHAN_MAP ?

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