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Description of problem:
When I mute headphone or speaker out via alsamixer master will mute automatically but it will not get unmuted back when I unmute headphone or speaker.

Also when I mute master only I'm not able unmute it back, I have to mute/unmute speaker or headphones again.

Version-Release number of selected component (if applicable):
kernel-2.6.32-262.el6
alsa-lib-1.0.22-3.el6

How reproducible:
100%

Steps to Reproduce:
1. play music
2. mute master via alsa mixer
3. umute

or

1. play music
2. mute speaker or headphones out
3. umute speaker or headphones out
  
Actual results:
no sound

Expected results:
should be unmuted

Additional info:
muting via sound-preferences works fine

Intel N10/IHC7 [8086:27d8] with ALC269

alsa-info at http://www.alsa-project.org/db/?f=46505bbc22f446c5e27ec0b93c722b6c1db6444c

Since RHEL 6.3 External Beta has begun, and this bug remains
unresolved, it has been rejected as it is not proposed as
exception or blocker.

Red Hat invites you to ask your support representative to
propose this request, if appropriate and relevant, in the
next release of Red Hat Enterprise Linux.

Created attachment 582131 [details]
alsa-info

Similar problem, mute Master through alsamixer works but unmute not. Pulseaudio volume control still shows muted, sound not audible.

Muting Headphones channel, mutes also Master but unmute leave Master muted.

HW: Realtek ALC889

All working now as expected in kernel-2.6.32-270.el6.

Closing as CURRENTRELEASE.

Created attachment 586809 [details]
alsa-info

Not working for me, same problem as in comment 5.