Though I suspect the CurrentControlSet is all you will need.Īs always, careful when modifying the registry. I wound up changing them all to f008 prior to a reboot. There are other "control sets" other than the CurrentControlSet. I finally found a solution that worked for me. However, if you reboot again, they will stop working again. You can now update again to the latest drivers, the brightness keys will remain functioning. The Fn+brightness keys should now work again. This was required the first time I got this working so I made sure those settings were changed back after the update reverted them.Īfter some more intense googling. Select from list > Select 'Microsoft Basic Display Adapter' and install. I should also note that I've also disabled adaptive brightness in display options and also my power options plan. I attempted to uninstall, and reinstall all drivers from Samsung over again, in various orders, running the Win10 Brightness Control Patch each time provided by Samsung Update, but in each case, never yielded results. I have no idea how I was able to resolve it last time. I recently updated W10 to anniversary edition and ran into this issue yet again. At the right corner of the search console, click on the power icon.
Press the Windows key to bring up the search box. If it is just a random glitch that is causing the brightness control function keys not to work, rebooting may help fix that. User Configuration > Administrative Templates > Control Panel > Display. Try restarting the computer if you have already upgraded Windows 11 to the latest build. Once you are inside the Group Policy Editor, navigate to the location mentioned below. Inside the text field of the dialog box, type gpedit.msc and hit Enter. Also Intel HD 4000 and Radeon 8700M GPUs. Press Windows + R keys on your keyboard to open a Run dialog box. Windows will install new monitor drivers and you display brightness will start working again.My system is a ATIV Book 8, model NP880Z5E-X01UB. Under driver list, you will see “ Generic PnP Monitor” Keep “Show compatible hardware” check box onħ. Select “Let me pick from a list of device drivers on my computer”Ħ. Select “Browse my computer for driver software”ĥ. Outdated drivers are the primary cause of such issues. If the Fn key did not work with the function keys to change the brightness, boot your laptop into BIOS, check if there is a setting in there to switch between Function keys and Action keys. As previously stated, follow each of these instructions until the issue is resolved. These techniques are some of the most reliable and tried and tested ways to fix screen brightness not working in Windows 10, 8, or 7. Right click in it, and select update driverĤ. Solved: Brightness Control Slider Not Working on Windows PC. Under “Monitors” tree you will see installed monitor, PnP-Monitor (Standard) in my caseģ. My display brightness is working fine now.įor advanced users, I will simply say, Go to “devmgmt.msc”, Install “ Generic PnP Monitor” as your monitor driver.Ģ. Until I tried my luck in “ Device Manager“, and it got solved. I was not able to reduce the brightness settings.I tried searching on Google, tried many things, but I couldn’t find the perfect solution. Recently, I encountered a weird problem in Windows 7, my screen brightness was stuck to maximum setting.