Catalyst/Radeon drivers had an option for switchable graphics and it worked quite well with my laptop. But when i did a fresh install of Ubuntu 16.04 LTS, the driver disappeared. I have searched that support for it was dropped and that i needed to use the amdgpu-pro driver if i wanted good OpenGL + OpenCL performance. I managed to install the driver with the --px argument instead of the -y argument in the guide). I tried some OpenCL apps for good measure but they wouldn't load the dGPU and would instead force to use the AMD APP SDK to the integrated intel graphics card instead. Is there an option to switch GPUs?
Intel Core i5-3200M
AMD Radeon Graphics HD 8750M
6GB of RAM (4GB+2GB)
Dual Booted Ubuntu 16.04 with Windows 10 (Secure boot deacivated)
link to guide: AMDGPU-PRO Driver for Linux Release Notes