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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 - [82Q35] Black widgets after some use"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=90377">90377</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[82Q35] Black widgets after some use
          </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>critical
          </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>fbobraga@gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=115647" name="attach_115647" title="Xorg.0.log">attachment 115647</a> <a href="attachment.cgi?id=115647&action=edit" title="Xorg.0.log">[details]</a></span>
Xorg.0.log

Its related with <a href="https://bugzilla.redhat.com/show_bug.cgi?id=949058">https://bugzilla.redhat.com/show_bug.cgi?id=949058</a>:

Occaionally, any new opened window (explorers, libreoffice, firefox, terminal,
etc) will go black and making it unusuable unless I restart X.

After installing Fedora 22 (this issue occurred before, on Debian 8 "Jessie"),
I've got corrupted graphics (images wrong displayed - as showed here:
<a href="http://youtu.be/RdPf8SLv_k0">http://youtu.be/RdPf8SLv_k0</a>) - tried the fix in
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=949058#c16">https://bugzilla.redhat.com/show_bug.cgi?id=949058#c16</a>, but it not solved the
issue (it seemed to have no effect at all - I think "AccelMethod" it's already
set to "sna"...).

Based on <a href="https://bugzilla.redhat.com/show_bug.cgi?id=949058#c16">https://bugzilla.redhat.com/show_bug.cgi?id=949058#c16</a> and some
googling, I've tried it:

################# begin file in /etc/X11/xorg.conf.d/ #################
Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "AccelMethod"  "uxa"
EndSection
################# end file #################

... it corrected the graphics (images are displayed correctly!), but the black
boxes occurred again after some use (like on Debian)...

additional info:
      -- chipset: Q35
      -- system architecture: x86_64
      -- xf86-video-intel/xserver/ version: in the attached Xorg.0.log
      -- kernel version: 4.0.1-300.fc22.x86_64
      -- Linux distribution: Fedora 22
      -- Machine or mobo model: Dell Optiplex 755
      -- Display connector: DVI (with DVI-VGA adapter to connect monitor)</pre>
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