The issue goes away when booting into Oneiric kernel. The upstream kernel (http://kernel.ubuntu.com/~kernel- ppa/mainline/v3.4-precise/) appears to have an incomplete fix of this bug: audio appears to switch between headphones and the speakers correctly, unless the headphones are plugged in when booting (or resuming from suspend). If booting (or resuming from suspend) with the headphones plugged into the headphone jack, there will be no sound going to the headphones, i.e. when the headphones are removed, the sound will come from the speakers, but when they are plugged back in, there will be no sound either through the speakers or the headphones.
This is in some sense similar to the current behavior of this bug (with the 3.2 kernel): when booting with headphones plugged in, the sound _only_ comes from the headphones. In 3.4, the sound _only_ comes from the speakers (but does mute correctly when headphones are plugged in). I put in the "kernel-bug-exists-upstream" tag, since the issue doesn't appear to be completely resolved in 3.4. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/997420 Title: Broken auto-mute with Realtek ALC262 chipset after 12.04 upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/997420/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
