![]() And I mean nothing - I keep reading about people whose Brightness sliders move up and down while having no effect on the brightness in my case, those buttons do nothing at all.įor all the lazy people out there who don't want to look up what hardware I'm sporting, it's an Intel® HD Graphics 4000 and an NVIDIA® GeForce® GT735M. The brightness setting in the Settings Charm is unavailable (greyed out) now, and says "Windows can't adjust the brightness on this display" when I hover my cursor over it. If your Sony VAIO has a setting to adjust automatic brightness, turn this feature off from Power Options as described above. I could change it just fine until yesterday. In addition to disabling 'enable adaptive brightness' under advanced power settings in Control Panel you must also: Launch VAIO Control Center ( + Q then type in VAIO control center) Under Display uncheck adjust brightness settings automatically Share Improve this answer Follow edited at 2:04 I say Reinstate Monica 25. Press the button repeatedly to adjust the LCD brightness of your computer screen. ![]() ![]() ![]() I upgraded my Sony SVF15A13SN - which came with Windows 8 out of the box - to Windows 8.1 yesterday, and have been unable to change my screen's brightness since it's stuck on maximum. Some keyboard functions can only be used while Windows is running. ![]()
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