[alsa-devel] HBR audio with intel HDA

[Ashecrow]

Le 2 août 2013 à 18:28, Anssi Hannula a écrit :

> 02.08.2013 19:14, Ashecrow kirjoitti:
>> 
>> Le 2 août 2013 à 15:42, Anssi Hannula a écrit :
>> 
>>> 02.08.2013 16:11, Ashecrow kirjoitti:
>>>> Hi Anssi,
>>>> Thanks for your answer
>>>> 
>>>> Test on kernel 3.8 + non-pcm bit in AES0:
>>>> aplay -D hdmi:CARD=PCH,DEV=0,AES0=0x06 -c8 -fs16_le -r192000 dts.spdif
>>>> => same result: no signal
>>> 
>>> Hmh, OK.
>>> 
>>>> With kernel upgrade to 3.9: same result
>>>> 
>>>> 
>>>> Note that I have tested with alsa* 1.025 and intel-hda driver included in kernel
>>>> 
>>>> Do you have any other idea?
>>> 
>>> You could try DEV=1 instead of DEV=0 (according to your log DEV=0 is
>>> correct, though), and truehd (thd.spdif from ffmpeg samples).
>>> 
>>> If neither of those work, could you provide another alsa-info while
>>> playing back using AES0=0x06 (with alsa debug enabled again)?
>>> 
>> I have already tried DEV=1 but it does the same. Moreover, let me note that I play DTS and dolby fine with DEV=0 in xbmc. So I guess it is the right device.
> 
> OK. Note that in some cases you can hear stereo audio or AC-3/DTS even
> when using wrong DEV=x (but HBR or multichannel audio would not work).
ok but it works for neither hdmi:...DEV=0 nor hdmi:... DEV=1
> 
>> see attached alsa-info.txt_dev0_kernel-3.8_aes0_dts-hd which is result of playing dts-hd spdif encapsulated with kernel 3.8 in debug mode and AES0=0x06 through command bellow
>> 
>> aplay -D hdmi:CARD=PCH,DEV=0,AES0=0x06 -c8 -fs16_le -r192000 dts.spdif
>> 
>> see attached alsa-info.txt_dev0_kernel-3.8_aes0_true-hd which is result of playing dts-hd spdif encapsulated with kernel 3.8 in debug mode and AES0=0x06 through command bellow
>> 
>> aplay -D hdmi:CARD=PCH,DEV=0,AES0=0x06 -c8 -fs16_le -r192000 thd.spdif
>> 
> 
> Looks like your kernel is definitely too old to have working HBR on
> Intel (the "ASP channel x => slot y" messages should have x=y), so
> you'll need 3.9+.

Ok but I did the test with kernel 3.9.3 and it doesn't work 
> 
> Unfortunately I don't see anything else wrong (and HBR+intel works for
> me), so I don't have anything else to suggest at the moment. Sorry.

Ok I know it works for many people who have intel hardware but not for my hardware. I've been struggling with this for 6 months and still no clue. 
How can I start a debug process?

> 
> 
>> Thanks for your help
>> 
>>> 
>>> 
>>>> Thanks
>>>> 
>>>> 
>>>> Le 1 août 2013 à 18:37, Anssi Hannula a écrit :
>>>> 
>>>>> 01.08.2013 19:29, ashecrow42 at free.fr kirjoitti:
>>>>>> Hi there,
>>>>> 
>>>>> Hi!
>>>>> 
>>>>>> I have troubles using HBR audio (DTS-HD and Dolby TrueHD). With every 
>>>>>> test, I get no signal in the AV receiver. I have tested using a dts-hd 
>>>>>> encapsulated in spdif sample file (found there 
>>>>>> http://samples.mplayerhq.hu/hdmi/) and commands bellow
>>>>>> 
>>>>>> - aplay -D hdmi devices
>>>>>> - aplay -D hw devices
>>>>>> - aplay -D plughw devices
>>>>> 
>>>>> You need to set the non-pcm bit in AES0. Use e.g. "-D hdmi:AES0=0x06".
>>>>> 
>>>>>> Note that I use ubuntu raring with 3.8 kernel that includes Xingchao's 
>>>>>> HBR kernel patches.
>>>>>> 
>>>>>> 
>>>>>> A. Configurations I have tested:
>>>>>> 
>>>>>> 
>>>>>> - hda driver upgrade (alsa devel ubuntu team daily builds)
>>>>>> 
>>>>>> - upgrade alsa-lib & alsa-utils (alsa-testing launchpad)
>>>>>> 
>>>>>> - kernel upgrade to 3.9
>>>>> 
>>>>> IIRC 3.9 (or newer) may indeed be needed since you have both hdmi and spdif.
>>>>> 
>>>>>> - snd_hda_codec_realtek module backlist (to try to disable SPDIF) 
>>>>>> /etc/modprobe.d/blacklist.conf
>>>>>> 
>>>>>> - snd_hda_codec_realtek index = -2 in /etc/modprobe.d/alsa-base.conf
>>>>>> 
>>>>>> - fresh new ubuntu raring install with no modifications at all: still 
>>>>>> no signal
>>>>>> 
>>>>>> B. Info:
>>>>>> 
>>>>>> cat /proc/asound/card0/codec* | grep Codec
>>>>>> Codec: Realtek ALC892
>>>>>> Codec: Intel CougarPoint HDMI
>>>>>> 
>>>>>> I use zotac ZBOX ID82 (intel HM65 chipset with hdmi and spdif)
>>>>>> 
>>>>>> with alsa debug and alsa debug verbose enabled in kernel I got the 
>>>>>> alsa-info.txt attached file produced on raring with no modification 
>>>>>> while playing dts-hd sample file with command:
>>>>>> 
>>>>>> 
>>>>>> aplay -D hdmi:CARD=PCH,DEV=0 -c8 -fs16_le -r192000 dts.spdif
>>>>> 
>>>>> As per above you need to use
>>>>> aplay -D hdmi:CARD=PCH,DEV=0,AES0=0x06 -c8 -fs16_le -r192000 dts.spdif
>>>>> 
>>>>>> 
>>>>>> C. I add that:
>>>>>> 
>>>>>> - In every test I have non HD audio protocols (DTS and dolby) working 
>>>>>> well in the same configuration
>>>>>> 
>>>>>> - I have tried with windows just to see if my hardware is broken and I 
>>>>>> get DTS-HD audio with no problem
>>>>>> 
>>>>>> - Takashi, I've read your HD-Audio.txt file and as far as I see, I have 
>>>>>> no known error message in kernel log
>>>>>> 
>>>>>> 
>>>>>> => I and Wingchao Wang have conclued that it is driver or codec 
>>>>>> related. Can you help me please?
>>>>>> 
>>>>>> Thanks a lot
>>>>>> PS: sorry if you receive this email twice, I have sent it again as I 
>>>>>> was not member of the list the first time.
>>>>> 
>>>>> 
>>>>> -- 
>>>>> Anssi Hannula
>>>> 
>>> 
>>> 
>>> -- 
>>> Anssi Hannula
>> 
> 
> 
> -- 
> Anssi Hannula