I seem to be getting this issue as well (on a US Robotics external USB modem). Then I did:
sudo apt-get remove modemmanager After that I could start up minicom and enter modem commands (AT$, etc.) ok. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to minicom in Ubuntu. https://bugs.launchpad.net/bugs/938485 Title: No keystrokes are sent - no outgoing serial To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/minicom/+bug/938485/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs