You didn't provide a dmesg. Please attach that and the output of "sudo setserial -a /dev/ttyS0" to this bug.
-- external serial modem don't work (but does work on other linuxes) https://launchpad.net/bugs/77467 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs