Keyboard and Mouse lag in X

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https://bbs.archlinux.org – I have wireless keyboard and mouse (Logitech K260) and I have very frequent input lags while running X, no input lag on console. 2nd,  mouse/keyboard work fine in X on other distros like Mint and Debian. Can someone help on this ? Here  is my /etc/X11/xorg.conf.d/10-evdev.conf:[arnuld@arch xorg.conf.d]$ cat 10-evdev.conf # # Catch-all evdev loader for udev-based systems # We don't simply match on any device since that also adds accelerometers # and other devices that we don't really want to use. The list below # matches everything but joysticks. Section "InputClass&qu (HowTos)