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From: Anssi Hannula <anssi@onse.fi>
To: Mathew Nichols <mathewcnichols@gmail.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: [AMD OSS Driver Bug] Only 2 Channel Audio Detected on HDMI
Date: Sun, 10 Aug 2014 20:47:26 +0300	[thread overview]
Message-ID: <53E7B02E.1080402@onse.fi> (raw)
In-Reply-To: <CAO5DFV-+wgL254wHL8crSC864ZY35EGBo6DYoM3m+WU=bWRPZw@mail.gmail.com>

18.07.2014, 03:33, Mathew Nichols kirjoitti:
> Hello,

Hello,

And sorry about the lengthy delay in response.

> Using Ubuntu Mini Kernel v.3.15.3-generic (OSS drivers) I cannot pass 7.1
> LPCM and cannot bitstream HD Audio formats. XBMC only detects 2 channels.
> The xbmc.log only reports m_channel=FL,FR. I can also bitstream AC3 / DTS.
> I have worked closely with fritsch. We believe this is a kernel audio error
> with my GPU (AMD 5670.) The setup is dual boot and the Windows partition
> works correctly, as does the older Ubuntu kernel with AMD proprietary
> drivers. Debug information below.
> 
> • Kernel log (dmesg with drm.debug=0xe):http://paste.ubuntu.com/7811317
> • Driver Codec: http://paste.ubuntu.com/7811321
> • xbmc.log: http://paste.ubuntu.com/7805000

Strange. Can you please report the output of:
speaker-test -D "hdmi:CARD=HDMI,DEV=0" -c8

Also, your kernel log is cut short, and does not contain any audio
entries. Maybe try without drm.debug?

> Using Ubuntu Mini Kernel v.3.13.0-32-generic (AMD proprietary drivers 14.4)
> I CAN pass 7.1 LPCM and I can then bitstream HD Audio formats. Windows 7
> also detects 7.1 LPCM @ 192khz and will bitstream all HD Audio formats. The
> xbmc.log reports all 8 channels for m_channels on both Ubuntu Mini and
> Windows 7. Debug information below.
> 
> • Kernel log (dmesg with drm.debug=0xe):http://paste.ubuntu.com/7811473
> • Driver Codec: http://paste.ubuntu.com/7811478
> • xbmc.log: http://paste.ubuntu.com/7811488



-- 
Anssi Hannula
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  reply	other threads:[~2014-08-10 17:47 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAO5DFV-QGmqb8PnkO+Z=YU2EzY=CdzmHvKmeunp8iTVNSdgNhQ@mail.gmail.com>
2014-07-18  0:33 ` [AMD OSS Driver Bug] Only 2 Channel Audio Detected on HDMI Mathew Nichols
2014-08-10 17:47   ` Anssi Hannula [this message]
2014-07-18  8:45 langkamp

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