Screen goes black when plugged in

[xIntimidatorSSx]

Hey guys, this is my first post on the forum. I've had an iPhone for a long time but just never looked on forums that much. Anyways, my iPhone 4 has been jailbroken for a long time now, and today it started doing something different. When I plug it in, the screen goes black after a couple seconds, then I can tap the screen and it comes back on. Phone runs perfectly fine. It doesn't do it when it's locked, only unlocked. This has stumped me. Any suggestions?

-xIntimidatorSSx

 

[Beast from the East]

Must be something from cydia i guess. You can try to figure it out, when did it started. Did u download something from cydia before that.