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1. Surface Keyboard Doesn't Light
2. Surface Pro 3 Backlit Keyboard
3. Surface Pro 3 Keyboard Light Not Working

Click to expand.LISTEN TO THIS GUY/GIRL!, the little brightness icons over the F1 and F2 keyboard aren't for the screen, they're for the keyboard! I think there are 4 levels of brightness to the keyboard, one of them being off. So if you accidentally pressed the F1 key you might have turned the brightness all the way down to off.FYI: you can adjust the SCREEN brightness using the keyboard too, though it's not obvious. FN+DEL turns the screen brightness up. FN+BACKSPACE turns the screen brightness down.

Surface Keyboard Doesn't Light

Fintie Microsoft Surface Pro 6 / Surface Pro 5 / Pro 4 / Pro 3 Type Cover, 7-Color Backlit Ultra-Slim Portable Wireless Bluetooth Keyboard with Trackpad and Built-in Rechargeable Battery, Gray. The keyboard turns on when your hands are close to the keyboard, not by how ambient room illumination. You can be on a nice summer day, the backlight will turn on when your hands are close to it. To turn it off, reduce the brightness of the back light to 0 by hitting the F1 key repeatedly.

Surface Pro 3 Backlit Keyboard

When it comes to saving battery, one of the things that you can do that is effective is to turn off the keyboard backlight of your Surface device. Note that other mobile devices will benefit from this as well, but that they may or may not support functionality to turn off the lighting of the keyboard.The Surface Pro ships with a sensor built-in that will activate the light on the keyboard to highlight the keys better. 1Control PanelHardware and SoundPower Options Change plan settings AdvancedProcessor power managementMinimum = 00Maximum = 50Note these values represent the percentage of your CPU’s multiplier. You can use something like CPU-z to see the values which your CPU supports, depending on the CPU you may want to choose something between 30 and 50.

Surface Pro 3 Keyboard Light Not Working

The idea is to not let the CPU raise it’s multiplier high enough to need the increased power needs for said higher values.2 NVIDIA onlySearch for a program called nvidiaInspector (doeanload it from Softpedia or Guru3D). The author is Orbmu2k.You can do a few things with it to make Nvidia GPU’s consume significantly less power than usual. First, right click on “Show overclocking” button and you have a power saving option.Second you can run the program with this argument:nvidiaInspector.exe” -forcePState:0,12to force the GOU in its lowest power state. Use:nvidiaInspector.exe” -forcePState:0,16to revert back. (or restart, this setting doesn’t stick)Disable Intel’s integrated GPU, it’s useless and you can make Nvida GPU consume a lot less power. Alternately you can go further and enforce a 30fps global limit (also in NvidiaInspector, click on the key/screwdriver button).Note: NvidiaIsnpector is portable.

Version 1.9.7.3 requires NET 3.5 (enabled on Win7 by default).