I've got a similar problem with 7.10 on a Toshiba Tecra A9. If I suspend or hibernate the ttyS0 no longer works. Doing stty < /dev/ttyS0 says std input: Input/output error. Setserial /dev/ttyS0 still sees it. Using setserial to (re)set the irq, port etc doesn't seem to do much.
-- Serial port stops working after suspend https://bugs.launchpad.net/bugs/105380 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs