I found two graphics in my device manager which are R7 Graphics and AMD R7 M265. I checked dxdiag and only found R7 Graphics, I tried to disable R7 Graphics in my Device Manager and checked dxdiag again and I saw Microsoft basic display adapter. I uninstalled my drivers using DDU (Display Driver Uninstaller) and reinstalled the driver (Radeon Crimson 15.12 Win8.1 x64).
and checked dxdiag again. It just go back to R7 Graphics. Any help please? I want to play games like CS:GO which having 70FPS in High Settings. We have the same specs, check this video (Acer Aspire E5-551G AMD FX 7500 AMD R7 M265 2 GB Counter-Strike: Global Offensive - YouTube ).
Aspire E 15 (E5-551G-F57K)
Windows 8.1 Single Language 64-bit
Bald Eagle 28nm Technology
8.00GB Single-Channel DDR3 @ 804MHz (11-11-11-28)
Acer EA50_KV (Socket FP3)
Generic PnP Monitor (1366x768@60Hz)
1024MB ATI AMD Radeon R7 Graphics (Acer Incorporated [ALI])
2048MB ATI AMD Radeon R7 M265 Series (Acer Incorporated [ALI])
931GB Western Digital WDC WD10JPVX-22JC3T0 (SATA)
MATSHITA DVD-RAM UJ8HC
Realtek High Definition Audio