[Bug 89055] [SKL ] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89055

--- Comment #34 from Prasad H L Bhat <hlprasu at gmail.com> ---
I get the same error sometimes on my T460 laptop with Intel HD Graphics 520.
When it occurs, it freezes the laptop completely (display turns off, no virtual
terminals work, audio buffer keeps looping if present when freezing).

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