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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [946GZ] Random black glitches blinking"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=90966">90966</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[946GZ] Random black glitches blinking
          </td>
        </tr>

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

        <tr>
          <th>Assignee</th>
          <td>chris@chris-wilson.co.uk
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>b.bellec@gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
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        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=116471" name="attach_116471" title="Xorg.0.log">attachment 116471</a> <a href="attachment.cgi?id=116471&action=edit" title="Xorg.0.log">[details]</a></span>
Xorg.0.log

On CentOS 7 desktop, everything was working correctly with
xorg-x11-drv-intel-2.21.15-13.el7.x86_64. Since I upgraded to
xorg-x11-drv-intel-2.99.916-5.el7.x86_64, I get some random black texture
appearing very quickly and spontaneously on the screen when an action is
performed, eg. open Activities, print screen (with Prt Scrn button).

This is not 100% reproducible for some action but the Prt Scrn button action
is, I would say, 90% reproducible. Sometimes, when opening the GNOME Terminal,
the prompt is hidden, I guess due to a non refreshed texture or something like
that.


Chipset: VGA compatible controller [0300]: Intel Corporation 82946GZ/GL
Integrated Graphics Controller [8086:2972] (rev 02)
Kernel driver in use: i915
System architecture: x86_64
Kernel version: 3.10.0-229.4.2.el7.x86_64
Linux distribution: CentOS Linux release 7.1.1503 (Core)
Motherboard: Intel D946GZIS (BIOS 0087)
Display connector: VGA
Note: Desktop is GNOME 3 Classic (CentOS default desktop)

Reproduce steps: Press "Prt Scrn" button of the background Desktop (all
applications window minimized)
Probability: ~90 %</pre>
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