https://bugzilla.kernel.org/show_bug.cgi?id=199319
--- Comment #10 from Mike Lothian (mike@fireburn.co.uk) --- I should add this is 4.16-rc7 (agd5f's 4.18-wip branch) Qt 5.10, KDE frameworks 5.44, Plasma 5.12.4, Xorg 1.19.5 using the modesetting DDX (I'll try the Intel & AMDGPU DDXs tonight.