Please note that sudo isn't different between Ubuntu and Kubuntu. In the last comment you are saying that the problem is fixed now, so I tentatively close this bug.
If it still happens, please do sudo strace -vft -o /tmp/trace sudo true and attach /tmp/trace here. Thanks! ** Changed in: sudo (Ubuntu) Status: New => Fix Released -- very slow reaction after enter password https://bugs.launchpad.net/bugs/335584 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