At Wed, 03 Aug 2011 10:56:01 +0200, Paul Menzel wrote:
Am Mittwoch, den 03.08.2011, 08:26 +0200 schrieb Takashi Iwai:
[…]
From: Takashi Iwai tiwai@suse.de Subject: [PATCH] ALSA: hda - Fix digital-mic mono recording on ASUS eeePC
The official spelling seems to be Eee PC [1].
The digital-mic unit on ASUS eeePC gives PDM signals instead of the normal
Dito.
stereo PCM, thus you can't record a mono stream from the stereo stream as is; the summing the stereo signal results in almost zero level, and you'll
Should »the summing« be »in summary«?
Eh, no, I meant the "summed" signal.
hear only noise.
As a workaround, use ALC269-specific COEF to manipulate the dmic route for mono, like used for ALC271x. Since this is implemented as a fix-up and the auto-parser works fine for eeePC, the patch drops the model quirk entries for them, too.
So as a consequence everyone using `model=auto` can drop that from `/etc/modprobe.d/`?
I do not know how high the regression chance might be, but if there is any, maybe split the patch and write all models in the commit summary
ALSA: hda - Use auto parser for ASUS UX50, Eeepc P901, Eeepc S101 and P1005HAfor people looking through the commit log.
Sounds reasonable. Done now.
thanks,
Takashi