6550 access asus atheros audio beta bluetooth boot bug card change chinese command connection current dell desktop dnf drive driver drivers dual eccedently epson error f11 f20 failed fails fedora file firefox fluxion freeipa gnome grub install installation installing intel issues kde kernel keyboard laptop linux login network nvidia preg_replace_all problem problems repositories root run samba screen server sound start sysctrld update upgrade usb wifi wireless work working xvideo yum