Updated from 4.2 to 4.3 hoping it was a glitch with 4.2 but my screen brightness flickers up and down what appears to be about 5 levels consistently (very fast, resembles a flickering) whenever the display is on. The brightness control also doesn't work, it has no effect on the brightness levels, you can slide it from one side to the other with no actual change.
This has an ill affect of draining the battery about 1% a minute when the display is on.
Anyone have a similar problem or know how to fix this?
I have the auto brightness unchecked and when enabled there is no change either.