<html>
    <head>
      <base href="https://bugs.freedesktop.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [amdgpu][bisected] PRIME stuttering tearing"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=105633">105633</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[amdgpu][bisected] PRIME stuttering tearing
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>XOrg git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (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>mike@fireburn.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>I've bisected this to:

commit 9021d2edd259d992cf8b5b48791ab50829129de7                                 
Author: Christian König <<a href="mailto:christian.koenig@amd.com">christian.koenig@amd.com</a>>                              
Date:   Mon Feb 19 11:29:35 2018 +0100                                          

    drm/amdgpu: mitigate workaround for i915                                    

    To be able to use DRI_PRIME with amdgpu and i915 we add all our fences      
    only as exclusive ones.                                                     

    Disable that behavior when sharing between amdgpu itself cause it           
    hinders concurrent execution.                                               

    Signed-off-by: Christian König <<a href="mailto:christian.koenig@amd.com">christian.koenig@amd.com</a>>                   
    Reviewed-by: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>                       
    Signed-off-by: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>   

If I revert that and a bit of:

commit 59dd47728625e6f8e77f888d00596c9fb7057540
Author: Christian König <<a href="mailto:christian.koenig@amd.com">christian.koenig@amd.com</a>>
Date:   Tue Feb 20 19:51:02 2018 +0100

    drm/amdgpu: further mitigate workaround for i915

    Disable the workaround on imported BOs as well.

    Signed-off-by: Christian König <<a href="mailto:christian.koenig@amd.com">christian.koenig@amd.com</a>>
    Reviewed-by: Alex Deucher <<a href="mailto:alexdeucher@amd.com">alexdeucher@amd.com</a>>                             
    Signed-off-by: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>   

To work around the compilation issue, things go back to normal</pre>
        </div>
      </p>


      <hr>
      <span>You are receiving this mail because:</span>

      <ul>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>