https://bugs.freedesktop.org/show_bug.cgi?id=97882
--- Comment #2 from Trevor Davenport trevor.davenport@gmail.com --- The above numbers where using the modesetting driver since I was trying to keep as much the same between radeon and amdgpu. I get similar behavior from amdgpu though.
Both radeon and amdgpu built from commit: https://cgit.freedesktop.org/~agd5f/linux/ drm-next-4.9-wip
commit 25114c509cc39b387aa358a86fa48c855266a6fe Author: Alex Deucher alexander.deucher@amd.com Date: Wed Sep 14 14:15:34 2016 -0400
drm/radeon/atif: Send a hotplug event when we get dgpu display request
Mesa: commit 6b0ba02cae1526d6e6671a9ff620fd3bd7d4d032
llvm: commit 338f974b6e4f5d5d004d36d0d446289280d0c372
drm: commit 2d00869599a1c853238401a38a334c3bc8673343