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      <base href="https://bugs.freedesktop.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - blackscreen after resume from hibernation"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=95363">95363</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>blackscreen after resume from hibernation
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Driver/Radeon
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>xorg-driver-ati@lists.x.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>d9d9@bk.ru
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=123644" name="attach_123644" title="dmesg">attachment 123644</a> <a href="attachment.cgi?id=123644&action=edit" title="dmesg">[details]</a></span>
dmesg

I'm using Gentoo kernel 4.5, after resume from hibernation I have black screen.
I tried two kernel versions 4.5.0-r1 and 4.5.3. In the end of dmesg after every
resume I see:
[drm:radeon_dp_link_train] *ERROR* displayport link status failed
[drm:radeon_dp_link_train] *ERROR* clock recovery failed
Does displayport means DisplayPort(<a href="https://en.wikipedia.org/wiki/DisplayPort">https://en.wikipedia.org/wiki/DisplayPort</a>)?
Because I don't have this in my laptop.

media-libs/mesa-11.2.2 
sys-devel/llvm-3.7.1-r1 
sys-kernel/gentoo-sources-4.5.3 
sys-kernel/linux-headers-4.5 
sys-power/pm-quirks-20100619 
sys-power/pm-utils-1.4.1-r6 
sys-power/upower-0.99.4 
x11-base/xorg-drivers-1.18-r1 
x11-base/xorg-server-1.18.3 
x11-base/xorg-x11-7.4-r2 
x11-drivers/xf86-video-ati-7.7.0</pre>
        </div>
      </p>


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