I just tried the reproducer steps in bionic, and it worked just fine. The second screen -r without any further parameters attached to the right screen.
Can we close this very old bug? ** Changed in: screen (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Server, which is subscribed to screen in Ubuntu. https://bugs.launchpad.net/bugs/600999 Title: screen -r fails with "WriteMessage: Bad file descriptor" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/screen/+bug/600999/+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