[alsa-devel] [PING!] Re: HDMI audio is not working on my new desktop

Wang Xingchao wangxingchao2011 at gmail.com
Thu Aug 22 02:28:30 CEST 2013

cc Mengdong and Liam, we're in the same PRC audio Team.

2013/8/21 Alexander E. Patrakov <patrakov at gmail.com>:
> 2013/8/21 Wang Xingchao <wangxingchao2011 at gmail.com>:
>> Hi Takashi/Alexander E. Patrakov,
>> 2013/8/20 Takashi Iwai <tiwai at suse.de>:
>>> Xingchao, could you take a look at this bug?
>> sure, i will take a look at it.
>> But i'm afraid i cannot continue tracking from next week, i'm under
>> leaving process at Intel.
> Best wishes to you, and good luck with a new job :)
> But then please tell us the contact information of the person at Intel
> who should be contacted instead of you for any further questions
> related to HDMI audio on Haswell.
>> At first glance, i saw a lot of errors:
>> [  772.822663] playback write error (DMA or IRQ trouble?)
>> [  782.912776] playback write error (DMA or IRQ trouble?)
>> [  793.002904] playback write error (DMA or IRQ trouble?)
>> [  803.093052] playback write error (DMA or IRQ trouble?)
>> [  813.183205] playback write error (DMA or IRQ trouble?)
>> [  823.273217] playback write error (DMA or IRQ trouble?)
>> I know this issue on some Haswell ULT boards(STP/WTM1) because they
>> are not stable, and it's better to use latest BIOS image(V131 or
>> later).

btw, did you do any suspend/resume operation before the audio playback test?
if not, it's a new case. i found the issue only on some particular
boards after suspend/resume.

> Thanks, I will try to update the BIOS and retest.
>> And seems the proper HDMI device should be pin6, i hope Alexander E.
>> Patrakov could help check below command at first:
>> speak-test -t wav -c 2 -D hw:0,7
> Same result. I guess I should update the BIOS first.
>> And pleaset let me know can you reproduce this issue 100% on the same
>> board? Did you test on some other boards with same Hardware?
> The issue is 100% reproducible on my board, and I don't have any other
> Haswell boards to test.
> --
> Alexander E. Patrakov

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