I have Lenovo Z51-70 laptop.
There is Intel HD Graphics 5500 and AMD Radeon R9 M375 installed.
Recently I wanted to run WebGL based application within Chrome.
I got a message that WebGL is not supported. I found it will not run on Intel graphics, however it would be possible to use it on AMD.
In Radeon Additional Settings I cannot switch Chrome to High Performance mode to use AMD graphics and there is a lock icon next to it.
Actually I cannot change the setting to any web browser (I was trying explorer, edge and opera).
I am running Win10 x64 and have AMD 17.4.4 driver installed.