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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 - R9285 amd-staging-4.7 bad gamma since drm/amd/display: Implement gamma correction using input LUT"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=99291">99291</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>R9285 amd-staging-4.7 bad gamma since drm/amd/display: Implement gamma correction using input LUT
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>DRI git
          </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>DRM/AMDgpu
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dri-devel@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>adf.lists@gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>R9285 git amd-staging-4.7 xserver 1.18.4 

since 
da3877a82a8a9375f47334cffd375c795d7a0f8c
drm/amd/display: Implement gamma correction using input LUT

initial x gamma will be far too light.

Turns out that although xgamma reports 1.0, doing 

xgamma -gamma 1.0

corrects the issue</pre>
        </div>
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