I didn't try closing the screen but one data point is that I'm running that system with acpi=off since the only way to get a reliable battery meter is with APM.
In case that matters at all.
Alexandre Oliva wrote:
Didn't turn the backlight off on my I8000 with GeForce2Go, unless I hit Fn-D, which no longer works with ACPI enabled. But there's something else on FC2: even with ACPI disabled, there's something that brings the screen back on after I hit Fn-D. The only way I know to actually switch the screen off completely is to close the lid. Then, even if I bring it back open, the screen remains off until I press some key.
-- Greg Gulik http://www.gulik.org/greg/ greg @ gulik.org