I have a Thinkpad Edge E130, and the LCD screen's backlight has 15 hardware steps. $ cat /sys/class/backlight/acpi_video0/max_brightness $ 15 I'm currently running Linux with LXDE as desktop ...
Macbook Pro has the "keyboard illumination keys" F5 and F6. For some reason, there is a small "no entry" sign whenever I hit those keys. The keyboard's illumination doesn't seem to change at all, ...