Issue with adjusting brightness on Windows 8.1
Issue with adjusting brightness on Windows 8.1
Hey everyone, my Asus X54HR has an Radeon HD 7470M graphics card inside. After switching to Windows 8.1, the brightness control stopped working. Now I can just pick full brightness or turn off the screen. I've been searching online for a solution without much luck, so you're probably my last chance! I've installed the newest ATK package for Windows 8.1 64-bit (includes ATKACPI driver and hotkey utilities version V1.0.0034). I also installed the latest AMD Catalyst Control Center software (details below). Version of the software: 13.251.9001-140423a-171190E-ATI Catalyst-versie 14.4. The source is Advanced Micro Devices, Inc., version 2D-stuerprogramma 8.01.01.1360. It should be registered at REGISTRY/MACHINE/SYSTEM/ControlSet001/Control/Class/{4d36e968-e325-11ce-bfc1-08002be10318}/0000 Direct3D-version 9.14.10.01001 OpenGL version 6.14.10.12618. I really hope this helps, and I'm happy to give you more if needed.
It indicates your bios is outdated compared to the latest available on the site. The highlighted warning states: "Warning: The BIOS-file is older than the current version." Click [Exit] to proceed.
Visit Leshcatlabs.net and use the UniFL Brightness Resolver tool.