I have posted details issues here (http://android.stackexchange.com/questi ... prevent-it), but in short, when controlling the brightness using swipe up/down inside VLC, the lowest brightness of VLC video is brighter than the lowest brightness of other screens (including VLC's own other screens) when the system brightness has been set to the minimum.
Is this an Android bug?
If I do not use brightness change within VLC, the minimum brightness remains, but sometimes it is convenient to have the ability to change the brightness with swiping up/down.