I have installed Xvfb server, And it's showing these errors every time I try to lunch a program.
(EE) config/hal: NewInputDeviceRequest failed
(EE) config/hal: NewInputDeviceRequest failed
(EE) config/hal: NewInputDeviceRequest failed
(EE) config/hal: NewInputDeviceRequest failed
Everything is working fine, but these errors are appearing in the terminal always which floods my screen & interrupting my commands.