Apparantly, I was wrong: the bug seems to be not related to PulseAuidio in my case. I was able to reactivate the mic by adding option 'position_fix=1' to the alsa-base.conf (see my report).
-- [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