On the toshiba Satellite M640 I solved the mic issue after downloading and installing the high definition audio codecs from www.realtek.com (follow the ubuntu instructions on the readme file)
-- Microphone does not work on Toshiba Qosmio X505-Q850. Numerous fixes attempted. yet none work. https://bugs.launchpad.net/bugs/578125 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
