I have tested this on a Sony Vaio FW170J with a fresh install of Karmic + linux-backports-modules-alsa-karmic-generic and I had to add the line "options snd-hda-intel model=auto" for the mic to work.
$ uname -a Linux frodo 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux $ cat /proc/asound/version Advanced Linux Sound Architecture Driver Version 1.0.21. Compiled on Oct 15 2009 for kernel 2.6.31-14-generic (SMP). -- Internal microphone not working on intel-hda (Realtek ALC262) in gutsy (and intrepid and ...) https://bugs.launchpad.net/bugs/141445 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs