Black Screen when Installing Linux on Acer? Here's a workaround to enable the display backlight!

Boot your Linux live CD/DVD

1. In the boot screen of Linux live CD/DVD press Tab and add 
i915.broken=1
2. Press Enter

After the installation on the hard drive the computer should reboot now

1. In the boot screen of Linux live CD/DVD press Tab and add 
GRUB_CMDLINE_LINUX="acpi_osi=Linux"
2. Press Enter
3. When the system loads try press the key shortcut to adjust the screen backlight, in my case <Fn> + <Left/Right Arrow> 
4. Open the terminal a type sudo gedit /etc/rc.local and add
   setpci -s 00:02.0 F4.B=00;