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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 89479] HDMI audio won't pass ac3 through another device
Date: Sat, 07 Mar 2015 00:15:48 +0000	[thread overview]
Message-ID: <bug-89479-502@http.bugs.freedesktop.org/> (raw)


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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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             reply	other threads:[~2015-03-07  0:15 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-07  0:15 bugzilla-daemon [this message]
2015-03-07  0:19 ` [Bug 89479] HDMI audio won't pass ac3 through another device bugzilla-daemon
2019-11-19  9:02 ` bugzilla-daemon

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