Created attachment 119391 [details]
dmesg after delayed recovery from display sleep

I just got a Sapphire R9 Fury X and am testing out the new amdgpu driver with linux 4.3.0. I am having trouble recovering from the display sleeping on Antergos with GNOME desktop. I have tried lightdm and am currently using gdm and seem to have the same issue. Sometimes I can get the screen back after waiting and sometimes I just have to restart with the physical buttons on my computer. The num lock and caps lock are responding and my monitor seems to wake for a moment but nothing appears on the screen and it goes back to sleep. 

dmesg reports (full dmesg attached)
[  124.140857] [drm:amdgpu_atombios_dp_link_train [amdgpu]] *ERROR* clock recovery tried 5 times
[  124.140873] [drm:amdgpu_atombios_dp_link_train [amdgpu]] *ERROR* clock recovery failed

-- System info --
$ lspci -d ::0300 -nn
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Fiji XT [Radeon R9 FURY X] [1002:7300] (rev c8)
$ glxinfo | grep "OpenGL version string"
OpenGL version string: 3.0 Mesa 11.0.4
$ uname -r
4.3.0-g5062ecd
$ glxinfo | grep "OpenGL renderer string"
OpenGL renderer string: Gallium 0.4 on AMD FIJI (DRM 3.1.0, LLVM 3.7.0)
$ grep "model name" /proc/cpuinfo | head -1
model name	: AMD FX-8370 Eight-Core Processor