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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 - [Regression] Gnome Shell slow animations"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=100617">100617</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[Regression] Gnome Shell slow animations
          </td>
        </tr>

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

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

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>grouchomarx.fr@gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Hi,
I have installed Debian Stretch on a Thinkpad X201 (ironlake) and Gnome Shell's
animations aren't smooth anymore (30fps max, and lag easily especially on an
external monitor).

I have tried uxa and sna dri2/dri3, modesetting, wayland, with similar results.
I have also checked Fedora.


I was previously using Debian Jessie and the animations were a lot smoother
(60fps max, though only with uxa/dri2).


I have made a bisect on Debian Jessie and have found that the animations aren't
smooth anymore after 
commit 6db906ea8188cd7f731e5ef7391115ee8f5c17c8
uxa/dri2: Reimplement triple buffer support

Unfortunately I failed to test the old driver on Debian Stretch.

So I don't know if it is a Gnome or a driver issue.

Or maybe some driver settings might fix it ?</pre>
        </div>
      </p>


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