[baskerville]

In the meantime, could you try this script:

#! /bin/sh

BKL=/sys/class/backlight
LM="$BKL"/lm3630a_led

echo 50 > "$BKL"/mxc_msp430_fl.0/brightness

echo 0 > "${LM}a"/brightness
echo 0 > "${LM}a"/bl_power

echo 150 > "${LM}b"/brightness
echo 31 > "${LM}b"/bl_power

sleep 3

echo 150 > "${LM}a"/brightness
echo 31 > "${LM}a"/bl_power

echo 0 > "${LM}b"/brightness
echo 0 > "${LM}b"/bl_power

sleep 3

echo 0 > "${LM}a"/brightness
echo 0 > "${LM}a"/bl_power

echo 0 > "$BKL"/mxc_msp430_fl.0/brightness

?

And provide the perceived light tint for each of the two frontlight states that it triggers?