My laptop run on Windows 10 and have 2 graphic systems such as Intel(R) HD4600 and AMD Radeon R9 M290X. After install crimson-15.11 or crimson-15.11.1 Intel(R) HD4600 + R9 M290x graphfic switching not work. i can't play any games (can open it's but have very low frame rate). On RADEON settings > Hardware tab. ATI REDEON R9 M290x name had change to HD8970M and show disable message. However, Intel(R) HD4600 + R9 M290x graphic switching can work only on "amd-catalyst-15.6-beta-software-suite-win8.1-64bit-june22" driver.
Systems Info :
CPU - Intel Core i7-4710MQ (2.50 GHz, 6 MB L3 Cache, up to 3.50 GHz) with Intel(R) HD4600
Graphic Card - AMD Radeon R9 M290X (2GB GDDR5)
Memory 8 GB DDR3L
Windows 10 64bit (Upgrade from win 8.1)