Every time I boot up Ubuntu or Mint, after choosing an OS from GRUB menu, before logging in, screen brightness is set to 0. What is the reason behind that?
I always end up manually turning on the brightness in order to see the logo and then login screen. It does not happen in other distros like Debian. I encounter this in Ubuntu 12.04, 13.10, Mint 15 and Mint 16.
computer specs: Laptop Lenovo g500; intel celeron 1005M 1.9G; RAM 4GB; integrated graphics; win8/mint16 dualboot