[Bug 199139] System freezes (kernel, amdgpu NULL pointer dereference) when video enters powersafe state

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=199139

--- Comment #18 from Eduard (wirch.eduard at gmail.com) ---
Even after updating to 4.19 release did not solve the problem.

I was able to work around it by disabling monitor power management in Xorg
settings:

Section "Monitor"
        Identifier      "Monitor0"
        Option "DPMS" "false"
EndSection


I sill get this error:

kernel: [drm:dce110_vblank_set [amdgpu]] *ERROR* Failed to get VBLANK!

But it does not repeat every 10s any more, and also my system does not freeze.
So I can finally upgrade from 4.14.

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