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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [KBL] Distortion Noisy Audio when continuously resolution changed on DisplayPort..."
href="https://bugs.freedesktop.org/show_bug.cgi?id=105848#c17">Comment # 17</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [KBL] Distortion Noisy Audio when continuously resolution changed on DisplayPort..."
href="https://bugs.freedesktop.org/show_bug.cgi?id=105848">bug 105848</a>
from <span class="vcard"><a class="email" href="mailto:sriramx.periyasamy@intel.com" title="Sriram Periyasamy <sriramx.periyasamy@intel.com>"> <span class="fn">Sriram Periyasamy</span></a>
</span></b>
<pre>(In reply to Abhijeet Kumar from <a href="show_bug.cgi?id=105848#c16">comment #16</a>)
<span class="quote">> (In reply to Sriram Periyasamy from <a href="show_bug.cgi?id=105848#c15">comment #15</a>)
> > What are we trying to achieve here with the info?
>
> We are checking the mapping of the display audio channel and HDA channel.
>
> As two debug registers are cleared after display modest in noisy case.
> AUD_TCA_INFOFR (0x54) 0x00000000 Audio Widget Data Island Packet -
> Transcoder A
> AUD_OUT_CHAN_MAP (0x88) 0x00000000 Audio Output Channel Mapping</span >
The mapping set only once at the time of start of the stream to the HDMI codec
if that causes the issue then the issue might have come for all resolutions.</pre>
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