I had the same problem (also running on a Dell Studio 16 XPS - 1645). I fixed it by adding the following line to /etc/modprobe.d/alsa-base.conf, then rebooting
options snd-hda-intel model=dell-m6-dmic People with other Dell Studio models, eg 1435, reported success with: options snd-hda-intel model=6stack-dell (see http://linuxforums.org.uk/ubuntu/internal-mic-not-working-in-my- ubuntu-10-10-%2864bit%29-in-my-dell-studio-14/) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/795823 Title: Dell Studio XPS - Internal Microphone not Working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/795823/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
