https://bugs.freedesktop.org/show_bug.cgi?id=106430
--- Comment #10 from mikhail.v.gavrilov@gmail.com --- Benjamin, I see that in Fedora 29 (Rawhide) with kernel 4.18.0-0.rc0.git9.1.fc29 problem was gone.
But with kernel 4.18.0-0.rc0.git10.1.fc29.x86_64 came yet another problem (video output at least DP stop working)