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    <body><span class="vcard"><a class="email" href="mailto:daniel@ffwll.ch" title="Daniel Vetter <daniel@ffwll.ch>"> <span class="fn">Daniel Vetter</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - [945GM bisected] screen blank on S3 resume on"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=72782">bug 72782</a>
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            <b><a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - [945GM bisected] screen blank on S3 resume on"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=72782#c40">Comment # 40</a>
              on <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - [945GM bisected] screen blank on S3 resume on"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=72782">bug 72782</a>
              from <span class="vcard"><a class="email" href="mailto:daniel@ffwll.ch" title="Daniel Vetter <daniel@ffwll.ch>"> <span class="fn">Daniel Vetter</span></a>
</span></b>
        <pre>(In reply to Jesse Barnes from <a href="show_bug.cgi?id=72782#c39">comment #39</a>)
<span class="quote">> Looks like a crash (on resume?), I'll take a look.</span >

Yes this is the drm_mm fumble I think. It's fixed in latest kernels, so
unfortunately you need to retest. Relevant patch

commit 046d669c62f37323ef0329c41d83a03c06b2087d
Author: Krzysztof Kolasa <<a href="mailto:kkolasa@winsoft.pl">kkolasa@winsoft.pl</a>>
Date:   Sun Mar 15 20:22:36 2015 +0100

    [PATCH] drm/mm: Fix support 4 GiB and larger ranges</pre>
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