Hi Marc, I don't see anything looking wrong in the codec, except for that the rear jack is a line-in rather than a mic (according to BIOS - and then the system configures it that way). But the front mic jack should work.
However, the title says "Optiplex 760" but the apport-info says "OptiPlex 580", could you clarify? ** Package changed: alsa-utils (Ubuntu) => alsa-driver (Ubuntu) ** Changed in: alsa-driver (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/774223 Title: [Dell Optiplex 760] Mic input no longer working -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs