Still the case in precise. It though emits a short warning message if there's already a minicom using the same port:
SetTTY (fd 6): ioctl failed: Interrupted system call ** Changed in: screen (Ubuntu) Status: Invalid => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/13211 Title: screen do not lock serial port To manage notifications about this bug go to: https://bugs.launchpad.net/screen/+bug/13211/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs