Original link: What to do if the Dell laptop can't adjust the brightness.
First of all, you can try to increase the brightness of the screen by pressing the FN key and the corresponding brightness adjustment shortcut (usually one of F1-F12).
Hold down the Fn key at the same time, and then press the F5 and F6 keys, and the above flag on each represents a parameter adjustment. The icon for adjusting the brightness should be similar to the small sun, one is brightened, and the next one is dimmed. Just try it and you'll find out.
1.Click the left mouse button on an empty space on the desktop, and press the CTRL+X keys to open the function of adjusting the brightness.
This machine has not been tested,The specific reason is not known,Hardware and software are possible,What we can do at present in terms of software is to flash the machine,That is, update the latest system,Firmware can be installed on the official website**,If you still won't, contact the after-sales directly。
Leave it for tossing, it doesn't feel necessary.
Go to the official website of the computer**Driver, according to what you said, your computer should be a dual graphics card.
It is recommended to reinstall the latest 360 on it. Right-click on the 360 icon in the bottom right corner of your computer and select Exit.
What to do if the brightness of the Dell laptop screen can't be adjusted.
Generally, it is fn (function key) + f2 (reduce brightness), fn (function key) + f3 (increase brightness).
1.In the Windows operating system, press the Win + X keys and select the "Device Manager" option from the pop-up menu.
1.Use shortcut keys: Press FN (function key) + F2 (decrease) or FN (function key) + F3 (boost) to adjust the screen brightness.
Go to Dell official *** latest graphics drivers and install the update. Outdated or incompatible drivers may result in the inability to adjust screen brightness.
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