Created
April 13, 2013 13:36
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Updated ALSA configuration for HDA-Intel based sounds cards where the channel mapping is wrong (e.g. nVidia ION based cards).
This is just the updated segment of the file /usr/share/alsa/cards/HDA-Intel.conf
The fix is in the extra slave.pcm section containing the ttable arguments.
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| HDA-Intel.pcm.hdmi.common { | |
| @args [ CARD DEVICE CTLINDEX AES0 AES1 AES2 AES3 ] | |
| @args.CARD { | |
| type string | |
| } | |
| @args.DEVICE { | |
| type integer | |
| } | |
| @args.CTLINDEX { | |
| type integer | |
| } | |
| @args.AES0 { | |
| type integer | |
| } | |
| @args.AES1 { | |
| type integer | |
| } | |
| @args.AES2 { | |
| type integer | |
| } | |
| @args.AES3 { | |
| type integer | |
| } | |
| type hooks | |
| slave.pcm { | |
| type route | |
| ttable.0.0 1 | |
| ttable.1.1 1 | |
| ttable.2.4 1 | |
| ttable.3.5 1 | |
| ttable.4.2 1 | |
| ttable.5.3 1 | |
| slave.pcm { | |
| type hw | |
| card $CARD | |
| device $DEVICE | |
| } | |
| } | |
| hooks.0 { | |
| type ctl_elems | |
| hook_args [ | |
| { | |
| name "IEC958 Playback Default" | |
| index $CTLINDEX | |
| lock true | |
| preserve true | |
| value [ $AES0 $AES1 $AES2 $AES3 ] | |
| } | |
| { | |
| name "IEC958 Playback Switch" | |
| index $CTLINDEX | |
| value true | |
| } | |
| ] | |
| } | |
| hint.device $DEVICE | |
| } |
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With the above fix the channel mapping is correct when playing AC3, DTS, AAC, Linear PCM from XBMC; and via speaker-test with devices "default" (aka pulse) and hdmi.