[Bug 91429] [HSW] WARNING: plane A assertion failure, should be disabled but not

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91429

Maarten Lankhorst <bugs at mblankhorst.nl> changed:

           What    |Removed                     |Added
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                 CC|                            |bugs at mblankhorst.nl

--- Comment #2 from Maarten Lankhorst <bugs at mblankhorst.nl> ---
Created attachment 118283
  --> https://bugs.freedesktop.org/attachment.cgi?id=118283&action=edit
Update plane_mask during readout

It looks like in the DMAR case the state for the initial fb cannot be updated
correctly, which means it doesn't get disabled during the first modeset.

Does the above patch fix it?

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