I upgraded the Asus X550ZE to Fedora 23 Beta Design Suite. So far, the majority of hardware is functional except the Fn hotkeys and the poor power optimization. For Fn hotkeys, after looking at all possible solutions, it turned out majority of Asus X series laptops is affected due to the lack of proper documentation of wapf function found within asus-nb-wmi module from the kernel. The ball is on ASUS to make hotkeys functional and provide needed information. The second case related to poor power optimization is due to radeon driver. In addition, the lack of functional hybrid driver only make the laptop running on R7 265 GPU for performance while the R5 230 is permanently disabled for better power saving. It will be a while before Linux kernel will support hybrid graphics for Dual AMD Radeon.