linux-kernel - Re: [PATCH] ALSA: hda - Fix silent output on MacBook Air 1,1

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Date:	Fri, 24 Jan 2014 21:14:44 +0100
From:	Paul Bolle <pebolle@...cali.nl>
To:	Adrien Vergé <adrienverge@...il.com>
Cc:	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	Nicolo' <nicolopiazzalunga@...il.com>,
	David Henningsson <david.henningsson@...onical.com>,
	Kailang Yang <kailang@...ltek.com>,
	Hui Wang <hui.wang@...onical.com>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ALSA: hda - Fix silent output on MacBook Air 1,1

On Fri, 2014-01-24 at 14:56 -0500, Adrien Vergé wrote:
> Similarly to other Apple products, MBA 1,1 needs a specific quirk.
> Pin 0x18 must be set to VREF_50 to have sound output.  This was no
> longer done since commit 1a97b7f, resulting in a mute built-in speaker.

Commit 1a97b7f ("ALSA: hda/realtek - Remove the last static quirks for
ALC882") was included in v3.4. Did no-one notice this for 9 releases?

> This patch corrects the regression by creating a fixup for the MBA 1,1.
> 
> Tested-by: Adrien Vergé <adrienverge@...il.com>
> Signed-off-by: Adrien Vergé <adrienverge@...il.com>


Paul Bolle

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