[Bug 74964] [BYT]I-G-T/testdisplay && 1920x1080i showing half screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74964

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
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             Status|ASSIGNED                    |NEEDINFO

--- Comment #12 from Chris Wilson <chris at chris-wilson.co.uk> ---
Didn't Jesse send a patch that should affect this bug... Actually Ville ended
up sending it,

commit efc2cfff28a9424a0f9f8b068c6c8697435664c3
Author: Ville Syrjälä <ville.syrjala at linux.intel.com>
Date:   Fri Mar 28 23:29:31 2014 +0200

    drm/i915: Fix the interlace mode selection for gmch platforms

    PIPECONF_INTERLACE_W_FIELD_INDICATION is only meant to be used for sdvo
    since it implies a slightly weird vsync shift of htotal/2. For everything
    else we should use PIPECONF_INTERLACE_W_SYNC_SHIFT and let the value in
    the VSYNCSHIFT register take effect.

    The only exception is gen3 simply because VSYNCSHIFT didn't exist yet.
    Gen2 doesn't support interlaced modes at all, so we can drop the
    explicit gen2 checks.

    Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
    Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

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