https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/711540
seem node 0x13 is the internal speaker ** Summary changed: - [9088BUG, Analog Devices AD1882, Black Speaker, Internal] No sound at all and hda_codec: Too many connections 32 for NID 0x23 + [Lenovo thinkcenter M57P, AD1882, Mono Speaker, Internal] No sound at all and hda_codec: Too many connections 32 for NID 0x23 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1109145 Title: [Lenovo thinkcenter M57P, AD1882, Mono Speaker, Internal] No sound at all and hda_codec: Too many connections 32 for NID 0x23 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1109145/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs