https://bugs.freedesktop.org/show_bug.cgi?id=100443
--- Comment #4 from taijian@posteo.de --- Created attachment 130826 --> https://bugs.freedesktop.org/attachment.cgi?id=130826&action=edit relevant dmesg output
I have a similar problem on my new notebook.
System: Arch Linux - Kernel 4.11-rc6 Intel i7-7700HQ AMD RX470 dGPU
dmesg, lshw, and lspci outputs are attached.