Found same here on Kubuntu 24.10. krfb starts, but complains that service cannot start but different port to be used.
Starting via Terminal gives follwing error then showing same as screenshot attached above: QObject::connect(FrameBuffer, RfbServerManager): invalid nullptr parameter Maybe discussion here is the same topic: https://discuss.kde.org/t/krfb-server-fails-to-start-after-upgrade-fom-24-04-to-24-10/23772/3 -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to krfb in Ubuntu. https://bugs.launchpad.net/bugs/2084968 Title: [24.10] Can't launch krfb To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/krfb/+bug/2084968/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs