[alsa-devel] [PATCH v3 0/5] ALSA: hda - hdmi: ATI/AMD multi-channel and HBR support

Anssi Hannula anssi.hannula at iki.fi
Mon Nov 25 14:20:23 CET 2013

24.11.2013 16:57, James Le Cuirot kirjoitti:
> On Sat, 23 Nov 2013 17:45:00 +0200
> Anssi Hannula <anssi.hannula at iki.fi> wrote:
>> 23.11.2013 17:40, James Le Cuirot kirjoitti:
>>> On Sat, 23 Nov 2013 03:29:28 +0200
>>> Anssi Hannula <anssi.hannula at iki.fi> wrote:
>>>> 23.11.2013 03:05, James Le Cuirot kirjoitti:
>>>>> Anssi Hannula <anssi.hannula <at> iki.fi> writes:
>>>>>> Here's another revision of the ATI/AMD multichannel+HBR patchset.
>>>>> Hi Anssi. Many thanks for your work on this. I am very keen to
>>>>> test this new code but have so far been unsuccessful. I have a
>>>>> Radeon 4670 (Sapphire branded) connected to a Yamaha RX-V773. I
>>>>> am running the sound/for-next kernel (82755ab) with your "missing
>>>>> PCM SAD" patch applied.
>>>>> The new kernel has allowed ALSA to recognise the card as
>>>>> multichannel and I can issue the following speaker-test command
>>>>> but I still only hear "Front Left" and "Front Right" and the
>>>>> Yahama seems to report the signal as stereo.
>>>>> # speaker-test -Dhdmi:CARD=HDMI,DEV=0 -c6 -t wav
>>>> ELD stuff is not necessary for playback, it is mostly for
>>>> information (and providing the necessary info for ELD is disabled
>>>> on radeon DRI drivers on some kernels on some GPUs ATM due to some
>>>> issues).
>>>> Is there anything interesting in "dmesg"?
>>> I have attached my dmesg. I enabled ALSA debug and verbose printk
>>> but disabled the on-board HDA audio in the BIOS to make it less
>>> confusing, and also to see if it made any difference, which it
>>> didn't. The only entry I find noteworthy is about the ELD but you
>>> say this isn't required.
>>> There seems to be little to go on here. Would it be worth enabling
>>> CONFIG_SND_DEBUG_VERBOSE? I gather it's very noisy but maybe that
>>> level of detail is needed. Hopefully you have a better idea.
>> Yeah, that would be useful.
> I have now done that. It was not as noisy as I expected and only added a
> few more messages. I broke the message size limit last time so I have
> posted the log to Gist instead. The timings are noted there.
> https://gist.github.com/chewi/7628058

Unfortunately everything looks OK.

Do you have any custom configuration in /etc/asound.conf or ~/.asoundrc?

To narrow it down a bit, are you able to test any of the following:
- same card on Windows,
- same card on fglrx,
- same receiver with a different AMD card,
- same receiver with an Intel/NVIDIA card?

Anssi Hannula

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