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If you’re having trouble with the brightness buttons on your HP EliteBook 845 G7 not working, but you can still change the brightness through settings, there’s a simple way to fix this issue. Sometimes, the hardware keys stop functioning properly even though the software settings work fine. Here’s a straightforward fix to get those brightness buttons working again.
First, check your keyboard drivers. Outdated or corrupted drivers can cause hardware keys to stop working. To do this, go to the Device Manager on your computer. You can do this by right-clicking the Start button and selecting “Device Manager.” Look for “Display Adapters” and expand it. Right-click on your graphics card and choose “Update Driver.” Follow the prompts to install any updates available.
Next, make sure that your HP Quick Launch Buttons driver is installed and up to date. This driver controls the function keys, including brightness controls. You can visit the HP support website, enter your laptop model number, and download the latest drivers for your device.
Another solution involves checking the function key behavior. Some laptops have a function (Fn) key that toggles the use of multimedia functions. Press the Fn key along with the brightness up or down buttons to see if it works. If that doesn’t help, try toggling the Fn Lock key (sometimes labeled as F Lock). This key can switch the function keys between standard and special functions.
If none of these steps work, resetting your BIOS can sometimes resolve hardware key issues. Restart your laptop and enter the BIOS setup by pressing a specific key during startup, usually F10 or Esc. Once in BIOS, look for any settings related to the function keys or keyboard. Save any changes and exit.
Finally, if your brightness buttons still refuse to work, you might want to perform a quick reset of your laptop. Turn it off completely, unplug it from the power source, and remove the battery if possible. Hold down the power button for about 15 seconds, then reconnect everything and turn on your laptop.
These steps should help you restore the functionality of your brightness buttons. Usually, updating drivers and checking the function key settings solve this common issue on HP laptops.
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