Yes, this is excactly what i meant, I usually have screen brightness at 3 or so but when in a dark situation when you want to use the torch (in a unlit staircase for example when you want to find the keyhole on the door) the screen can be quite bright so temporarily setting it to lowest setting while the application is running (using it as flashlight with the white leds) might be a solution. switching the screen off when the torch is lit is easy enough with the side switch but blocking it with a DBus call might be more annoying than usefull i think :-)

(having doubts about lens launcher and dont like reflashing)