After a bit of searching I found that I had to add
amdgpu.cik_support=1 radeon.cik_support=0
to the kernel parameters for amdgpu to be loaded after linux 4.13.
Everything is smooth again after I did this.
The other problem I have after the update is that the automatic connection to my Wifi fails after boot every time with the "disconnected from bla bla" message. And I have to manually open the popup list and connect, this works every time.