Poke: this should be reverted, as mentioned in IRC enabling DC has unfortunately broken the displays on this TONGA GPU as well. GPU info: [AMD/ATI] Tonga PRO [Radeon R9 285/380] [1002:6939] (rev f1) more info https://people.freedesktop.org/~lyudess/archive/06-24-2018/4.17-rc-breaks-lyude-machine.txt