Running a dual boot with Arch Linux and Windows 8 on my laptop (Asus G74sx). I'm running Syslinux as bootloader.
When i have a video cable plugged in at boot (HDMI or VGA) the image of syslinux and login is projected on one of the extended displays even if theese aren't activated, the laptop screen is black. When i start X i can see things on my laptop screen again.
The bios isn't displayed on the laptop screen either, but can't change anything in the Bios settings itself.
So is there somehow I can force syslinux and tty to be displayed on the laptop screen?