From: Kevin Fenzi <kevin@scrye.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: ALSA: Conexant CX20585 (thinkpad t510) speaker powersave regression
Date: Wed, 9 Jan 2013 16:58:07 -0700 [thread overview]
Message-ID: <20130109165807.11a07af0@jelerak.scrye.com> (raw)
In-Reply-To: <s5hk3rnofv5.wl%tiwai@suse.de>
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On Tue, 08 Jan 2013 16:26:38 +0100
Takashi Iwai <tiwai@suse.de> wrote:
> It's a known problem that some people have already reported, but
> currently no clue who actually turns down the pin to D3.
> Conexant guys wrote me that the codec doesn't do it by itself, and the
> driver neither, AFAIK. A possible answer is the firmware / BIOS, but
> who knows.
Thanks for the answer! :)
> In anyway, could you try to trace the hd-audio events and see whether
> the power down is *not* issued by the driver when you see this state?
> See Documentation/sound/alsa/HD-Audio.txt, the section "Tracepoints"
> for a brief instruction.
I can give it a try...
kevin
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next prev parent reply other threads:[~2013-01-10 0:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-22 21:23 Kevin Fenzi
2013-01-08 15:26 ` Takashi Iwai
2013-01-09 23:58 ` Kevin Fenzi [this message]
2013-01-12 18:40 ` Kevin Fenzi
2013-01-13 9:06 ` Takashi Iwai
2013-03-10 17:44 ` Kevin Fenzi
2013-03-11 7:54 ` Takashi Iwai
2013-07-12 4:42 Jason Schindler
2013-07-12 12:41 ` Takashi Iwai
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