Okay. I found the reason for this phenomenon. Although i am using a LAN connection, network traffic reduced the range of the USB Mouse/Keyboard Receiver. Very strange. I would mark this as solved.
** Changed in: linux (Ubuntu) Status: New => Invalid -- Mouse and Keyboard slow down due to network traffic https://bugs.launchpad.net/bugs/502296 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