Finally, I can enable it to work. ALSA team didn't answer to me although I posted to them.
https://answers.launchpad.net/ubuntu/+source/alsa-driver/+question/186698 Above is my solution, hope works for you. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/556663 Title: no sound on Presario B1900 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/556663/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
