I still don't understand. I never "unplugged." I do not use headphones or earbuds. I use only the laptop speakers.
It is reboot that causes the value to toggle, and the speakers to be disabled. This behavior started with the recent upgrade to 12.04. Here is the current value of 33 from amixer -c0 contents: $ amixer -c0 contents numid=33,iface=CARD,name='Headphone Jack' ; type=BOOLEAN,access=r-------,values=1 : values=on I just tried plugging and unplugging earbuds into the headphone jack (had to find it first) several times. There is no change in the amixer output for 33. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1085552 Title: sound output connector reverts to headphones on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1085552/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
