0 Replies Latest reply on May 9, 2018 7:17 AM by drshep

    Windows 7 AMD Radeon R9 M200x No Brightness Control


      Hi there,


      I've always had issues with this card and the brightness controls after driver updates. However, up until now a registry hack has resolved the issue.


      Basically - each time the driver is updated, the brightness control stops working. The keys move the slider, but no change in brightness occurs.


      (Actually, this time it was a total nightmare - the update blue-screened my laptop and I had to uninstall everything (including the Intel card) and start all again)


      I've tried the registry hack, but the key (KMD_EnableBrightnessinterface2) is no longer there. Creating it doesn't help.


      I've tried disabling adaptive brightness etc, but again nothing.


      Hoping you guys have had some more luck...


      Any ideas?



      Windows 7 64-bit, Samsung Series 7 Chronos laptop.