[Bug 102322] System crashes after "[drm] IP block:gmc_v8_0 is hung!" / [drm] IP block:sdma_v3_0 is hung!

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102322

--- Comment #4 from dwagner <jb5sgc1n.nya at 20mm.eu> ---
I was asked in
https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/open-source-amd-linux/1027705-amdgpu-on-linux-4-18-to-offer-greater-vega-power-savings-displayport-1-4-fixes?p=1027933#post1027933
to mention here that I have experienced this kind of bug only when using the
"new" display code (amdgpu.dc=1).

I cannot strictly rule out that it could also happen with dc=0, since I have
tried dc=0 only for short periods occasionally, but during those periods I did
not see this kind of crash.

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