Also happens on my Lenovo SL300 with an nVidia 9300M. The way it happens for me, though, is that the screen starts at a normal brightness when it boots and stays that way through GRUB, but becomes dark early in the linux boot process, specifically when it says "loading hardware drivers". I've tried booting without usplash, and it does the same thing.
** Package changed: ubuntu => linux (Ubuntu) -- [jaunty] Screen brightness is minimal until login https://bugs.launchpad.net/bugs/348043 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs