are you sure that your laptop need model=dell-headset-multi ? for those netbook with one and only one Jack, this Jack can be either use as headphone or Mic
it is strange that headset Mic and headphone Mic exist at same laptop [ 8.348801] sound hdaudioC1D0: autoconfig: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker [ 8.348806] sound hdaudioC1D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [ 8.348809] sound hdaudioC1D0: hp_outs=1 (0x15/0x0/0x0/0x0/0x0) [ 8.348811] sound hdaudioC1D0: mono: mono_out=0x0 [ 8.348813] sound hdaudioC1D0: inputs: [ 8.348816] sound hdaudioC1D0: Headphone Mic=0x19 [ 8.348819] sound hdaudioC1D0: Headset Mic=0x1b [ 8.348821] sound hdaudioC1D0: Internal Mic=0x12 y -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1289930 Title: Crackling sounds after rebooting, and when playing any audio. Going to sleep and coming back fixes it. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1289930/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs