you have plugged the speaker into the green jack at rear panel since the value of Line Out Front Jack is true
control.38 { iface CARD name 'Line Out Front Jack' value true comment { access read type BOOLEAN count 1 } } All desktop with hda codec should be supported except some mothboard with alc880 does not set the pin default if your computer chassis have HDA Front audio panel (with pin 4 connected) , you need to setup the front audio panel type to HDA in BIOS setup please run alsamixer -c0 to check whether the playback switch is not muted and unmuted frequently it is not clear that module-switch-on-port-available switch to which port when availabilty of line out jack and headout jack are unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1207364 Title: no sound since upgrade to 13.04 [System Product Name, Realtek ALC892, Green Line Out, Rear] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1207364/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs