![]() You need to install the Intel HD graphics drivers if you want Enduro to function correctly. I actually meant the OSD package, not AWCC, because OSD has the drivers that control your multimedia hotkeys, including the display brightness controls. If you see other options, such as "Auto," do not select them or your machine may have problems booting. Do not use any setting in the BIOS except for SG and PEG mode. using PEG forces use of the discrete GPU and disables switchable graphics). (SG mode is "switchable graphics" and PEG mode is PCI Express Graphics. Boot Windows and see if brightness control is restore. If brightness control still does not work at this point, try changing your BIOS primary video adapter setting from SG mode to PEG mode. ![]() I do not recommend using drivers from places like Guru3D or LaptopVideoToGo as their drivers are often more buggy than AMD reference drivers, especially on a system that uses hybrid graphics switching (Enduro and Optimus). After installing the recommend Intel driver, try to install the latest AMD Catalyst Mobility package. ![]() Start the system normally after DDU has finished and install the Dell Recommend driver for the Intel HD graphics. This will remove everything related to your AMD drivers and shut down the computer. Select the option to clean for a new graphics card installation. Download and install DDU v9.9, and use it in Windows Safe Mode. I know it seems like a strange question, but have you tried uninstalling and reinstalling Alienware Control Center and Alienware OSD? Sometimes these applications can have a conflict with drivers that affects screen brightness controls with the older AMD video cards. What video driver are you currently using? How many different video drivers have you attempted to use? They have gotten a little better in the last 8 to 10 months, but you may have a lot of crud built up or corruption from an incomplete driver installation that is causing your current problems.Īs this is typically a problem caused by buggy AMD/ATI drivers, using a different driver and often resolve the problem. ![]() The Catalyst Installation Manager does not do a good job of cleaning out old drivers and removing obsolete registry keys and AMD is famous for having driver issues. Problems with Catalyst Control Center not installing or not updating have also been very common. This lack of brightness control issue has been a very common problem with AMD/ATI video drivers off again and on again for many years. ![]()
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