[alsa-devel] [PATCH 0/4] Intel HDMI audio fixes

Takashi Iwai tiwai at suse.de
Wed Feb 11 23:42:00 CET 2009

At Wed, 11 Feb 2009 14:32:41 -0800,
Shane W wrote:
> On Wed, Feb 11, 2009 at 03:22:27PM +0800, Wu Fengguang wrote:
> > Shane: the first two patches should address the two bugs you reported, i.e.
> > - multi-channel HDMI audio playback problem
> > - first half-second audio samples missing
> > These two bugs was reproduced and fixed in the combination of
> > G35 SDVO HDMI + Yamaha RX-V1800 AV receiver. The first problem cannot be
> > verified in G45 system because we still cannot make G45 work with
> > Yamaha. The second problem is interesting in that it can be fixed by the
> > second patch in G35, but still remains in G45.
> Hi,
> Ok mixed results here.  I'm using this for my test signal:
> http://www.csy.ca/~shane/51test.wav
> when using:
> aplay -D hw:0,3 51test.wav
> Front and rear left and right are correct but centre is
> missing.  The order in the wav is:
> front left
> centre
> front right
> rear left
> rear right
> sub buz

The order assumed here doesn't match with ALSA mapping.
  front left
  front right
  rear left
  rear right
Better to test with speaker-test program whether the mapping is


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