http://git.kernel.org/?p=linux/kernel/git/tiwai/sound.git;a=commitdiff;h=247d85ee068610c50d66ee0cd3130e02c69f5f2e;hp=ac2e87366c18d49c6dc12e89ae4f4512f126eeb4
not only AC97 codec has pcm playback switch, the headphone of many desktop with hda codec are shared with primary output -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-utils in Ubuntu. https://bugs.launchpad.net/bugs/1026331 Title: `amixer set Master toggle` mutes but doesn't unmute Status in “alsa-utils” package in Ubuntu: Confirmed Bug description: alsa-utils 1.0.25-1ubuntu5 This used to work in 10.04, does not longer work in 12.04: <sound is on> # amixer set Master toggle <sound is off> # amixer set Master toggle <sound is still off, should be on> The same is true for mute/unmute, previously in 10.04 one could mute/unmute Master, but now one has to (mute Master)/(unmute Master, Headphone, Front, etc etc in order for the sound to be restored) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-utils/+bug/1026331/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
