[Bug 90861] [SNB/HSW/BSW/SKL bisected] black screen on DP+eDP

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90861

Maarten Lankhorst <bugs at mblankhorst.nl> changed:

           What    |Removed                     |Added
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 Attachment #116355|0                           |1
        is obsolete|                            |

--- Comment #19 from Maarten Lankhorst <bugs at mblankhorst.nl> ---
Created attachment 116359
  --> https://bugs.freedesktop.org/attachment.cgi?id=116359&action=edit
Update more hw state when reading out.

Slightly improved patch.

I've noticed that vblank wasn't being setup correctly either, could you test
this patch too?

To get rid of the fdi_lanes warning you could try to apply the patch on top of
http://cgit.freedesktop.org/~mlankhorst/linux/log/?h=unify-flip-modeset ?

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