Dual Graphics AMD not working

Hi everyone, i want to use GPU in Premiere Pro CC 2017, but it doesn´t let me to change Mercury Playback Engine.

Laptop info:

GPUSniffer info:

Vendor: ATI Technologies Inc.

Renderer: AMD Radeon R8 M365DX

OpenGL Version: 4.5.13399 Compatibility Profile Context 15.201.1101.0 15.201.1101.0

GLSL Version: 4.40

Monitors: 1

Monitor 0 properties -

   Size: (0, 0, 1366, 768)

   Max texture size: 16384

   Supports non-power of two: 1

   Shaders 444: 1

   Shaders 422: 1

   Shaders 420: 1

--- GPU Computation Info ---

Found 2 devices supporting GPU computation.

OpenCL Device 0 -

   Name: Iceland

   Vendor: AMD

   Capability: 2

   Driver: 2

   Total Video Memory: 2048MB

OpenCL Device 1 -

   Name: Carrizo

   Vendor: AMD

   Capability: 2

   Driver: 2

   Total Video Memory: 765MB