@DavidH: I installed alsa-intel-hda-optiplex-dkms as you asked, but it does not work for my Optiplex 980. The front panel headphone jack has sound, but the external speaker jack is not muted when headphones are plugged into the front panel headphone jack.
If it's any help: The ONLY thing that works successfully for me on the Optiplex 980 is this, executed as root: hda-verb /dev/snd/hwC0D0 0x21 0x701 0 -- [Realtek ALC269] no sound on external speaker jack (Optiplex 980) https://bugs.launchpad.net/bugs/588031 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
