Re: [PATCH] snd_hda_codec_realtek: enable ALC271 for Acer laptops

From: Guido Trentalancia
Date: Thu Apr 14 2011 - 13:14:53 EST

Hello again Takashi.

On Thu, 2011-04-14 at 11:45 +0200, Takashi Iwai wrote:
> At Thu, 07 Apr 2011 19:38:27 +0200,
> Guido Trentalancia wrote:
> >
> > This quick fix to the Realtek HD Audio driver enables configurable support for the ALC271 type commonly found on some Acer laptops (e.g. Aspire 5745G).
> >
> > Normally, the driver would fall back to BIOS auto-probing. However, the "model=acer" parameter can be passed on the boot command line to enable such support. Otherwise, it is quite common that the internal microphone does not work.
> Anyway, it's not such quite common that the machine doesn't work
> without the model quirk any longer :) In most cases, we want to avoid
> the model quirk but fixing the pin configuration instead.

Actually I have to disagree on the "not quite common". Just use the
right keywords (including "microphone") along with a good web search
engine and you'll discover plenty of reports for this chipset including
formal bug reports on several distributions.



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