[Bug 89479] HDMI audio won't pass ac3 through another device

[Bug 89479] HDMI audio won't pass ac3 through another device

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https://bugs.freedesktop.org/show_bug.cgi?id=89479

            Bug ID: 89479
           Summary: HDMI audio won't pass ac3 through another device
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: linux@cmadams.net

I have an AMD E-350 system (Radeon HD6310).  When I connect it directly to my
receiver and play a file with AC3 audio, the receiver properly switches over to
Dolby Digital decoding.  However, when I connect the HDMI to another device's
pass-through (Vizio TV, Xbox One), the receiver stays in stereo mode and I get
garbage audio.  Other devices can send Dolby Digital through (e.g. I tried a
TiVo Roamio through the Vizio TV), so I know it can be done.

I'm guessing there's some bit of HDMI handshake not happening when the Radeon
tries to switch modes and is connected to another device, but I don't know how
to debug that.  Please let me know what I can do to figure this out.

I'm testing this with a trailer downloaded from hdtrailers.net, playing with
either XBMC or VLC.

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[Bug 89479] HDMI audio won't pass ac3 through another device

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https://bugs.freedesktop.org/show_bug.cgi?id=89479

--- Comment #1 from Chris Adams <linux@cmadams.net> ---
Sorry, left out that this is a Fedora 20 x86_64 system, up to date with Linux
kernel 3.18.8.

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[Bug 89479] HDMI audio won't pass ac3 through another device

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https://bugs.freedesktop.org/show_bug.cgi?id=89479

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #2 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/592.

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