This issue is partically resolved by linux-backports-modules-alsa-karmic-generic or linux-backports-modules-alsa-karmic-generic-pae (depends on the kernel your using).
autosensing now work for the XPS 13, though still no way for you to manually choose. So once you plug in the headset. You can't manually choose to take input from the internal mic. You have to unplug the headset.
This issue is partically resolved by linux-backports -modules- alsa-karmic- generic or linux-backports -modules- alsa-karmic- generic- pae (depends on the kernel your using).
autosensing now work for the XPS 13, though still no way for you to manually choose. So once you plug in the headset. You can't manually choose to take input from the internal mic. You have to unplug the headset.