I tried it out by connecting the screen to my laptop and calibrating it, then going to sleep mode, turning everything off and on again, then it has no problem. If I go to settings and screen on my computer after turning it back on, it works fine. But calibrated to my computer or to my laptop is also a big difference. On my laptop it is just as bright as the screen on the right and as soon as I plug the cable back into my computer and it goes to the calibrated setting, it is much less bright again.