[Bug 102498] [DC] Monitors blink every 10sec and layout resets after returning from powersave or sleep

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=102498

--- Comment #2 from fayn@mt2015.com ---
(In reply to Michel Dänzer from comment #1)
> You mentioned on bug 102300 that this is a recent linux-amd-staging
> regression. Please mention the last known good and first known bad version.

It is not a reggression. I tried and it happens with older amd-staging kernel
from before I updated.

1) Monitor layout reseting when returning from sleep is an old problem, I'm
sure it's been at least from November 2016, maybe even earlier. At one point of
time it only happened sometimes (before Dec 2016), now always. 

2) Blinking only happens with linux-amd-staging kernel, not in stock.

I tested with latest Archlinux stock kernel 4.12.8-2 and it still keeps ASUS
black on boot, but unlike when I reported #102300 I can restore the picture by
switching to mirrored and back to extended desktop in XFCE (worked even after
few reboots). I can confirm there is no blinking with stock kernel.

Only difference to before in stock kernel is that ASUS 60.00 refresh seem to
work now. Difference to amd-staging kernel is that stock reports DVI-I-1 and
amd-staging DVI-D-1.

Fully updated Arch with stock kernel:

Graphics:  Card: Advanced Micro Devices [AMD/ATI] Tonga PRO [Radeon R9 285/380]
           Display Server: x11 (X.Org 1.19.3) driver: amdgpu
           Resolution: 1920x1080@60.00hz, 1920x1080@60.00hz
           OpenGL: renderer: Gallium 0.4 on AMD TONGA (DRM 3.15.0 /
4.12.8-2-ARCH, LLVM 4.0.1)
           version: 4.5 Mesa 17.1.7

and from amd-staging

Graphics:  Card: Advanced Micro Devices [AMD/ATI] Tonga PRO [Radeon R9 285/380]
           Display Server: x11 (X.Org 1.19.3) driver: amdgpu
           Resolution: 1920x1080@60.00hz, 1920x1080@60.00hz
           OpenGL: renderer: Gallium 0.4 on AMD TONGA (DRM 3.20.0 /
4.12.0-1-amd-staging, LLVM 4.0.1)
           version: 4.5 Mesa 17.1.7

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