I have recently added a Fedora 21 partition on my workplace machine, however i'm experiencing the curious issue that my mouse and keyboard "framerates" are incredibly slow. The mouse cursor is enormously laggy and jumps periodically and when i type at normal speed on the keyboard, it drops keypresses. Gnome itself seems to run perfectly fine (the animations when opening/closing windows are completely smooth and not choppy, glxgears runs at >1000fps).
I have done some Google-Fooing but couldn't really find anything. Looked at the howto debug site  and couldn't find a problem, although i don't really know what i'm supposed to look for (i'm only just starting out on Linux).
If anybody has pointers on where/how to start hunting this down, it would be greatly appreciated.