Here is service manual for acer 7720 notebooks: http://www.scribd.com/doc/35348752/Acer-Aspire-7720z-Compal-La-3551p-Sc. ACL268 pinout is located on page 34.
As you can see, pin 37 "MONO OUT" is used for woofer. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/516725 Title: acer 7720g laptop 3 spkr's 3rd being sub woofer not working -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
