I am currently using Go SMS for my txt application. I have it setup to show a popup of a received txt message over the lock screen so I can quickly reply. If I look at the txt, and reply or close it out right away, everything is fine, but if I let it sit for a few seconds, and the screen turns off, when unlocking the screen, the camera doesn't kick on for face detection. The workaround that I have found to get past the lock screen is to press the Emergency Call button, then the back button, then it allows me to use the pattern lock screen to unlock my phone. Has anyone else experienced this? Just a little more background, I'm running the stock ROM, and the phone is rooted.