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Creative Labs Sound Blaster Audigy cards (snd_emu10k1 driver) expose mixer controls named 'PCM Front', 'PCM Rear', etc. in addition to the more common 'Front', 'Rear', etc. The latter seem to be intended for a stereo-to-all-speakers mirroring mode that we do not use, and have no effect when we adjust them. https://docs.kernel.org/sound/cards/audigy-mixer.html We therefore define a custom mixer path for Audigy devices, using the PCM mixer controls. This has been tested on an Audigy 5/Rx. Based on a brief look at the ALSA driver, I think all Audigy devices (vendor 0x1102, device 0x0004 or 0x0008) have the same PCM controls, making this change probably safe for our existing Audigy udev rules. Relevant kernel files: sound/pci/emu10k1/emu10k1_main.c sound/pci/emu10k1/emufx.c include/sound/emu10k1.h Fixes #2934
55 lines
1.3 KiB
Text
55 lines
1.3 KiB
Text
; Mixer path for the Sound Blaster Audigy series, which uses the EMU10K2 DSP.
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; We target 'PCM Front' and similarly named controls instead of 'Front' et al.
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; because the latter have no effect on volume, apparently intended for a
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; stereo-to-all-speakers mirroring mode that we do not use.
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; https://docs.kernel.org/sound/cards/audigy-mixer.html
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;
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; See analog-output.conf.common for an explanation on the directives
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[General]
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priority = 99
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description-key = analog-output
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[Element Master]
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switch = mute
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volume = merge
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override-map.1 = all
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override-map.2 = all-left,all-right
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[Element PCM Front]
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switch = mute
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volume = merge
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override-map.1 = all-front
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override-map.2 = front-left,front-right
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[Element PCM Rear]
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switch = mute
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volume = merge
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override-map.1 = all-rear
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override-map.2 = rear-left,rear-right
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[Element PCM Surround]
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switch = mute
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volume = merge
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override-map.1 = all-rear
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override-map.2 = rear-left,rear-right
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[Element PCM Side]
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switch = mute
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volume = merge
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override-map.1 = all-side
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override-map.2 = side-left,side-right
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[Element PCM Center]
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switch = mute
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volume = merge
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override-map.1 = all-center
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override-map.2 = all-center,all-center
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[Element PCM LFE]
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switch = mute
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volume = merge
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override-map.1 = lfe
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override-map.2 = lfe,lfe
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.include analog-output.conf.common
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