[Bug 110671] Regression: DP outputs out of sync on dual-DP tiled 5k screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110671

--- Comment #4 from Tomas Bzatek <bugs at bzatek.net> ---
Created attachment 144252
  --> https://bugs.freedesktop.org/attachment.cgi?id=144252&action=edit
dmesg drm.debug=0x1e (kernel 4.20.0-zen-g742adf1bca12-dirty)

For the record, this is a custom 4.20.0 kernel that is proven realiable.

Basically agd5f drm-next-4.21 branch at 674e78acae0dfb4beb5613
"drm/amd/display: Add fast path for cursor plane updates"

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