[Bug 200695] Blank screen on RX 580 with amdgpu.dc=1 enabled (no displays detected)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=200695

wevsty (ty at wevs.org) changed:

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                 CC|                            |ty at wevs.org

--- Comment #46 from wevsty (ty at wevs.org) ---
I have the same problem.

Kernel version 5.4.0-39-generic on ubuntu.
Graphics card: AMD RX580.
Motherboard: ASRock Z87.
Monitor: Compaq x22LED (Using HDMI to DVI-D adapter connected)

If you use the default configuration the startup will quickly black screen, if
you use amdgpu.dc=0 it will display normally.

I'll post the demsg that provides when the dc is 0 and 1 to help diagnose the
problem.

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