Created attachment 134418 [details]
dmesg containing errors (see end of file)
I was playing visual novel Tsukihime with wine. I tried to switch to windowed mode from fullscreen and my monitor went black, and after that I couldn't recover picture using xrandr or arandr, or xfce's monitor utility. Only restart helped. There are errors in log attached.
Linux 4.12.13, AMD Radeon R9 200 Series (AMD TONGA / DRM 3.15.0 / 4.12.13-1-ARCH, LLVM 5.0.0) OpenGL version: 4.5 Mesa 17.2.0
The GPUVM faults are more likely caused by Mesa than the kernel.
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