[Bug 75345] [HD4600] DVI does not support dual-link

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75345

--- Comment #2 from Chris Wilson <chris at chris-wilson.co.uk> ---
I hesitated closing as WONTFIX as I suspect this may actually be fixed by

commit 7d148ef51a657fd04036c3ed7803da600dd0d451 [v3.11]
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Mon Jul 22 18:02:39 2013 +0200

    drm/i915: fix hdmi portclock limits

    In

    commit 325b9d048810f7689ec644595061c0b700e64bce
    Author: Daniel Vetter <daniel.vetter at ffwll.ch>
    Date:   Fri Apr 19 11:24:33 2013 +0200

        drm/i915: fixup 12bpc hdmi dotclock handling

    I've errornously claimed that we don't yet support the hdmi 1.4
    dotclocks > 225 MHz on Haswell. But a bug report and a closer look at
    the wrpll table showed that we've supported port clocks up to 300MHz.

    With the new code to dynamically compute wrpll limits we should have
    no issues going up to the full 340 MHz range of hdmi 1.4, so let's
    just use that to fix this regression. That'll allow 4k over hdmi for
    free!

    v2: Drop the random hunk that somehow slipped in.

    v3: Cantiga has the original HDMI dotclock limit of 165MHz. And also
    patch up the mode filtering. To do so extract the dotclock limits into
    a little helper function.

    v4: Use 300MHz (from Bspec) instead of 340MHz (upper limit for hdmi
    1.3), apparently hw is not required to be able to drive the highest
    dotclocks. Suggested by Damien.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67048
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67030
    Tested-by: Andreas Reis <andreas.reis at gmail.com> (v2)
    Cc: Damien Lespiau <damien.lespiau at intel.com>
    Reviewed-by: Damien Lespiau <damien.lespiau at intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

but there is no indication of system configuration.

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