Messages in this thread | | | Date | Mon, 28 Jan 2013 09:56:33 +0100 | From | Takashi Iwai <> | Subject | Re: 3.7 HDMI channel map regression |
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At Sun, 27 Jan 2013 19:18:27 -0600, Shawn Bohrer wrote: > > Hi Takashi, > > I recently updated my HTPC from 3.6.11 to 3.7.2 and this caused my RL > and FC channels to swap, and my RR and LFE channels to swap for PCM > audio. Doing a git bisect identified > d45e6889ee69456a4d5b1bbb32252f460cd48fa9 "ALSA: hda - Provide the > proper channel mapping for generic HDMI driver" as the commit that > caused my channels to swap. The commit doesn't revert cleanly on > 3.7.4, and I haven't really looked to see what the correct fix might > be. > > Some info that may be relevant, the sound card is a: > > 00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset > Family High Definition Audio Controller (rev 04) > > The machine is running Fedora 18 and audio goes over HDMI to a 5.1 > receiver. I'm not really sure what other info you might need, but > let me know if you need something else or have any patches you would > like me to test.
OK, it's the first time to get a bug report about this. Could you tell me how did you test it (i.e. which application, which sound backend)? Can you confirm that it's reproduced via speaker-test program in alsa-utils package?
For further debugging, please give the following: - alsa-info.sh output while playing 5.1 sound - /proc/asound/card*/eld* contents while playing 5.1 sound
Also, try to update alsa-lib and alsa-utils from alsa-project.org git tree, and build alsa-lib/test/chmap program. % cd alsa-lib/test % make chmap
and run like
./chmap -Dhdmi:1 query
(-Dhdmi:1 might be different depending on the system setup)
thanks,
Takashi
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