[Bug 68030] [Haswell] blank Screen with intel ddx on first use right after using fbdev ddx. Breaking SuSE Install

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=68030

--- Comment #23 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 63a070a31a3963f836539ee7629d64fe3c9f88c8
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Sep 18 17:03:40 2013 +0100

    sna: Do not change DPMS mode on unconnected outputs

    The operation is in theory redundant, and in the case of Haswell where
    we have multiple outputs aliasing to the same encoder, actually harmful.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68030
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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