try booting in windows, and resetting the modem to factory default with hardware flow control (ATZ4); then boot in ubuntu, try deleting any minicom configuration you have (user and system-wide), and start minicom with "-s" (this way, minicom will not initialise the modem); then try to match minicom settings with your modem's configuration (flow control, ...).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1087519 Title: Serial port ttyS4 doesn't work in 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1087519/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
