linux-kernel - Re: BUG - HDA Intel very low audio with breaking voice in 2.6.28-rc8

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Date:	Mon, 15 Dec 2008 08:26:06 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	"Jaswinder Singh" <jaswinderlinux@...il.com>
Cc:	linux-kernel@...r.kernel.org, matt.jared@...el.com,
	andy.kopp@...el.com, dan.d.kogan@...el.com, pshou@...ltek.com.tw
Subject: Re: BUG - HDA Intel very low audio with breaking voice in 2.6.28-rc8

At Sun, 14 Dec 2008 17:00:52 +0530,
Jaswinder Singh wrote:
> 
> Hello Takashi,
> 
> On Sun, Dec 14, 2008 at 2:56 PM, Takashi Iwai <tiwai@...e.de> wrote:
> >>
> >> I am facing problem in 2.6.28-rc8, HDA Intel audio is very low and
> >> with breaking voice, may be it seems like HD effect ;)
> >
> > What do you mean "breaking voice"?  Please be more specific.
> >
> 
> 1. It seems like few frames are dropping and it gives like crackling sound.
> 2. Audio volume is very low, I can only hear it if I increase the volume > 85%
> 
> > Run alsa-info.sh with --no-upload option, and attach the generated
> > file.  This will contain the detailed hardware information.  The
> > script is found at
> >    http://www.alsa-project.org/alsa-info.sh
> >
> 
> I am attaching output file by using sound git kernel.

Could you try probe_mask=1 option so that only the first code is used?
I guess your BIOS is broken and the driver tries to probe the wrong
slot.

> > Is this a regression from the older kernel?
> 
> I have no idea, I have checked many trees and versions but all are
> giving same problem.
> 
> > If yes, please run
> > alsa-info on both working and non-working kernels and attach the both
> > outputs.
> 
> http://www.alsa-project.org/db/?f=ef63766d74e6a7aa7fe246b62dafa2711aae109a
> by using sound git kernel.

Run with --no-upload option and attach the both results.
But, if the other kernel version shows the same behavior, it's no help
actually.


Takashi
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