Why is my lock screen flashing and not working?

[AC Question]

I have a samsung galaxy s5,
(My phone has had some trouble on low brightness, it flashes green and I now know how to fix it with an app but i think its relevant to the rest)
When I turn on my phone 3/4 times i see the SAMSUNG GALAXY S5 logo dissappear after 0.2s with a same green glow, later on I cant get into my phone because on my lockscreen i press the power bitton or home button and I see a very brief flash of white/green light and then it turn black(keep in mind that i can still feel the vibration of the keycode keys i have to press to unlock the phone, so the screen works?)
Sometimes on boot its normal and I can see something else then a black screen.
But either way, when I'm done with my phone and I lock it I cant go and unlock it again..
Anyone help please?
Things I have done already:
Battery in and out
Factory Reset
Virus scanner

 

[Dgratz110802]

The same thing happens to me and as far as I know, there isn't a solution. But one thing that I do when the screen flashes is I unlock my phone and turn the brightness up all the way with memory of where everything is. Then the screen usually comes on within 3-5 tries.

Edit: This has recently stopped working