[Bug 70132] [sna igb] multihead output stopped working

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70132

--- Comment #32 from Chris Wilson <chris at chris-wilson.co.uk> ---
(Oops was thinking of the other multiple monitor regressions in the kernel).

The issue here is that state we read back from the CRTC and create a mode from
does not always correspond with the mode we create from the EDID mode list -
notably the CRTC flags go astray.

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