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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [SNB] KMS with intel sandy bridge video sets brightness to zero."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=43577#c43">Comment # 43</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [SNB] KMS with intel sandy bridge video sets brightness to zero."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=43577">bug 43577</a>
              from <span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=71276" name="attach_71276" title="drm/i915: set the BIOS current backlight level">attachment 71276</a> <a href="attachment.cgi?id=71276&action=edit" title="drm/i915: set the BIOS current backlight level">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=43577&attachment=71276'>[review]</a>
drm/i915: set the BIOS current backlight level

It's a long shot, but could you try the attached patch? It's on top of
drm-intel-next-queued, but might apply on Linus' master too. It just might help
with the BIOS <-> driver co-operation here.</pre>
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