Hi, I had the same problem, I fixed selecting Analog Stereo Duplex option. Now the microphone appear, but I have microphone low volume problem as previously Jaunty. This was fixed in kernel 2.6.28.13 or 2.6.28.14. I not sure exactly. it would be good to report this issue, if anyone else has this problem. thanks in advance.
lspci | grep -i audio 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02) uname -a Linux 2.6.31-7-rt #9-Ubuntu SMP PREEMPT RT Wed Oct 7 23:01:00 UTC 2009 x86_64 GNU/Linux -- [regression] Built-in mic not working after pulse updates on Karmic. Intel 82801H (ICH8 Family) sound card. https://bugs.launchpad.net/bugs/409819 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