According to Dell-Cares, the fix is: 1. Uninstall the Dell OSD (On-Screen Display) Application:Go to Control Panel > Programs and Features >Looks for the above application. You could also check this on Windows Programs and Features page. Click on Windows > search for Programs and Features.If the OSD application is listed, uninstall it. 2. Uninstall Intel Video Driver:Go to Device Manager, expand the Display Adapter. right-click on Intel Video driver and select Uninstall. When you will get a prompt to delete the driver, click on it and proceed further. Restart the system. 3. Install the below drivers from the link:Video DriverInstall the driver and restart the system. Then install the OSD application. Restart the system and check if you can adjust the brightness on the system.
After upgrading to firmware ver 1.3, I am not able to set the brightness by using brightness bar. I have reinstalled the Dell OSD app already, anyone has the same issue? OS: Win10[IMAGE][IMAGE][IMAGE]
OptiPlex 7480 cannot control brightness by brightness bar