[alternize]

same here. my device reports "bright light detected" even when there's not enough ambient light to see the keys on my keyboard. turning off the monitor seems to help, but...

[vanderZwan]

It works by detecting infrared light - the lightsource is likely an infrared one that you can't see, possibly your monitor.

[alternize]

absolutely. yet if it won't work properly with the monitor turned on, there's little use for it.