You need to modify you xorg.conf to emulation a monitor.
{{Code|cd /etc/X11/ nano xorg.conf}} :save it as xorg.conf.bak {{Code|nano xorg.conf}} :replace everything with
Section "Monitor"
save and close xorg.conf
{{Code|nano /boot/grub/grub.conf}} :save it as grub.conf.bak {{Code|nano /boot/grub/grub.conf}} :add above title Fedora
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"