[alsa-devel] [PATCH] More Aspire 8930G fixes
tiwai at suse.de
Thu Jun 4 00:17:45 CEST 2009
At Wed, 03 Jun 2009 23:50:02 +0200,
Hector Martin wrote:
> Enable all three capture channels, including the missing nid 7 which is
> the only one capable of capturing DMIC input
> Enable Headphone amp for the HP jack. This causes a volume boost for
> headphones, but does not cause any noticeable effect for light loads
> like other amps, so there is no need to make it configurable.
> Add Input Mix capture mux setting to capture the output of the playback
> input mux (that is, what goes out the speakers except for PCM)
> Hack another coef register because the stereo DMIC for some reason
> produces a nonstandard sum/difference signal. I found a bit to make it
> just use the sum signal for both channels, which makes it behave like a
> standard mono microphone. The stereo is useless anyway (they're 1cm apart).
> Tested working: Three capture channels, mic in, line in, DMIC.
> Tested not working: CD. Not sure why, might be unconnected in the actual
> hardware or a CD drive issue.
> Also looked at SPDIF. It appears to work (emitter lights up inside the
> HP out jack) but I lack a proper miniTOSLINK cable to test it.
Applied now. Thanks.
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