only patch_realtek.c for missing headset mic and subwoofer
the alienware model is just a variant of dell-headset-multi which don't implement headphone mic since you already have a mic jack and another headphone
you have to maunally select the capture source to select headset mic , mic and internal mic
https:/ /git.kernel. org/cgit/ linux/kernel/ git/tiwai/ sound.git/ commit/ sound/pci/ hda/patch_ realtek. c?id=73bdd59782 3e2231dc882577d bbaf8df92fe1775
only patch_realtek.c for missing headset mic and subwoofer
the alienware model is just a variant of dell-headset-multi which don't implement headphone mic since you already have a mic jack and another headphone
you have to maunally select the capture source to select headset mic , mic and internal mic