said in Problem with brightness settings: Hello, I have a problem while using f.lux. When I turn it on, it changes chromatic temperature to warmer, that is okay. After that I put my notebook to hibernation, and when I wake it again, usually after sunrise, I have problems with brightness control. It expresses in these ways: OSD of brightness control is still lightning; OSD doesn't show at all; brightness isn't adjustable; software providing OSD informations crashes. Sometimes works this or that, sometimes nothing goes wrong, sometimes goes everything wrong. So when I take it to hibernation or even sleep (but with sleep there isn't problem mostly), and then wake it up, the problem arises at about 50% chance. As I said, sometimes just OSD software crashes but everything else works (brightness control). Now, for example, nor OSD nor brightness control works. However, function of other special Fn keys and their OSD works well. So I thought about easy solution, disabling the f.lux to override and handle system controls of monitor chromatic temperature and just use it as it was before the changes was done to my registry. I mean that when I install f.lux freshly, it won't make the screen much warmer, but after clicking on a button to improve f.lux or something like that, other functions will appear. And I want to turn it back, because I think there was no problem before this change. Unfortunately I forgot where to change it, although I read of that once. Or, is there any other solution? P.S. My notebook is IBM Lenovo T60, with integrated Intel 945 GM Graphics Controller, and software from Lenovo. Graphics driver should be up to date, a few days back I downloaded it from Intel. Also please excuse my bad english, it is not my native language. Please help me. Hi I have a similar problem. What helped you solve it?