Still not working? Okay we're going to get a bit more in depth now :) 2nd option Reboot the computer and check the brightness controls again. This last step is important, you don't want Windows to just reload the same driver again, which is what it will do. Expand Monitor and double click on the installed monitor driver, you want to choose to uninstall it and delete the driver if you have that option as well so that it cannot automatically reload itself again.
You'll see a long list of devices that are attached to your laptop or tablet, one of them will be called "Monitor". You'll need to head off to your Windows Control Panel, and find the Device Manager which is usually situated in the Computer Management utility, or can be found by right clicking on My Computer and choosing "Manage".) Remove the monitor.inf (we're going to remove the current monitor / LCD driver from the system and load a new, hopefully more compatible one). Here are some steps you can take to rectify the situation: Solutions 1st and easiest option Yes, although your screen is hardware, it does also have software loaded onto it known as EDID. There are two main reasons for this, the first being that the display driver for the new screen is now incorrect as you've changed the screen (most likely for a different model or brand), or that the new screen has updated software that the hotkey driver does not recognize. What's happening here is the hotkey software is now unable to talk to the new screen. It's a little more complex than that but you get the jist. This hotkey driver will then talk to the screen to ask the screen to adjust the backlight brightness. When you push one of these buttons, a piece of software usually called a hotkey driver will realise the buttons are being pushed. The brightness controls on your keyboard, are two buttons, up and down. It maybe that your screen is stuck in low brightness or full brightness but anyhow, you can see that you can't adjust that.
When you use the hotkey brightness controls on the keyboard, you cannot adjust the brightness of the screen anymore. You're so pleased that you've managed to perform this repair alone, but something isn't quite right. June 2014 Nick Technical Support (0) Screen replacement loss of brightness controlĬongratulations, you've found a replacement screen online to replace the broken one in your laptop or tablet computer.
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