[Bug 101835] [APL] HDMI 2.0 port cannot pass through Dolby TrueHD and DTS-HD under Linux

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101835

--- Comment #14 from Achilles <lqvnguyen at hotmail.com> ---

(In reply to samuelchueh from comment #13)
> Hi, 
>  Bug 98797 DP is MegaChips. We use the LSPCON (Parade PS176) on our system. 
> Not the same issue.

Actually it is. Jani is getting to the final root cause analysis here. The
issue has to do with which output (hdmi vs dp) the drm-tip driver is receiving.
It doesn't matter if its the Parade or the Megachips LSPCon, the same issue is
experienced with both on Linux. I have been tracking this issue on Plex for
some time now.

I can reproduce this on any system that emulates HDMI2.0 through a DP
controller via LSPCon.

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