Comment # 2 on bug 107692 from Sven Arvidsson

System environment:
-- system architecture: 64-bit
-- Linux distribution: Debian unstable
-- GPU: TONGA
-- Model: Asus Strix R9 285 2GB
-- Display connector: DVI
-- xf86-video-amdgpu: 18.0.1
-- xserver: 1.20.1
-- mesa: 18.2.0~rc4
-- drm: 2.4.93
-- kernel: 4.17