Re: ALSA: Sound barely audible since 2.6.37-rc1+

Takashi Iwai
2011-01-17T15:33:13Z

At Mon, 17 Jan 2011 20:54:29 +0530,
Avinash Kurup wrote:
>
> Hi Takashi,
>
> The sound on my computer since 2.6.37-rc1+ is barely audible (extremely
> soft), The sound
> remains the same even on increasing it on the desktop or the application.
>
> On accessing alsa-mixer I get the error, cannot load mixer controls: Invalid
> argument.
>
> I bisected the problem to this commit.
>
> 03b7a1ab557efe34e8f79b78660e514bd7374248 is the first bad commit
> commit 03b7a1ab557efe34e8f79b78660e514bd7374248
> Author: David Henningsson <david.henningsson@canonical.com>
> Date: Tue Nov 9 14:35:30 2010 +0100
>
> ALSA: HDA: Create mixers on ALC887
>
> BugLink: http://launchpad.net/bugs/669092
>
> ALC887 does not have any volume control ability on the mixer NIDs,
> so put the volume controls on the dac NIDs instead. Without this
> patch, ALC887 users cannot use alsamixer at all.
>
> Cc: stable@kernel.org
> Signed-off-by: David Henningsson <david.henningsson@canonical.com>
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
>
> :040000 040000 f1e34cf6301ebd2ee2108af5195e2786c135e348
> 1e5d012759d201af4102a822dd94328080aa3a0b M sound
>
> Other related info...
> ----------------------
>
> avinash@neurolink:~/GIT_KERNEL_REPO/linux-2.6$ uname -a
> Linux neurolink 2.6.37-rc1+ #164 SMP Mon Jan 17 20:15:43 IST 2011 x86_64
> GNU/Linux

Could you get alsa-info.sh output (run with --no-upload option) on
the old working kernel? If so, please attach the output.
Anyway, please give alsa-info.sh output on the broken kernel, too.

thanks,

Takashi