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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 - Firefox quirks (black and/or white squares)"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=104216">104216</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Firefox quirks (black and/or white squares)
          </td>
        </tr>

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

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

        <tr>
          <th>Hardware</th>
          <td>Other
          </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/AMDgpu
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>xorg-driver-ati@lists.x.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>germano.massullo@gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=136090" name="attach_136090" title="screenshot 1">attachment 136090</a> <a href="attachment.cgi?id=136090&action=edit" title="screenshot 1">[details]</a></span>
screenshot 1

Firefox has several quirks showing black and/or white squares. The bug is
actually reproducible, but not in a deterministic way. I mean, if I will reboot
the system or restart Firefox, I am not sure when it will happen again.

This bugreport is probably a duplicated of
<a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - Latest mesa breaks firefox on kde plasma with compositing on"
   href="show_bug.cgi?id=103699">https://bugs.freedesktop.org/show_bug.cgi?id=103699</a>

but the important thing is that the affected VGA is an AMD RX480 (AMDGPU
driver) rather than an Intel.
I decided to open a separate bugreport once #radeon fredrikh user noticed that
the patch
<a href="https://lists.x.org/archives/xorg-devel/2017-November/055344.html">https://lists.x.org/archives/xorg-devel/2017-November/055344.html</a>
that should fix
<a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - Latest mesa breaks firefox on kde plasma with compositing on"
   href="show_bug.cgi?id=103699">https://bugs.freedesktop.org/show_bug.cgi?id=103699</a>
is for Intel only.

OS: Fedora 27
xorg-x11-server-Xorg-1.19.5-1.fc27.x86_64
kernel 4.13.16-302.fc27.x86_64
Mesa 17.2.4

# lspci -k | grep -iA 3 vga
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Ellesmere [Radeon RX 470/480/570/580] (rev c7)
        Subsystem: XFX Pine Group Inc. Radeon RX 480
        Kernel driver in use: amdgpu
        Kernel modules: amdgpu

Attached screenshots from my Firefox bugreport
<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=1421353">https://bugzilla.mozilla.org/show_bug.cgi?id=1421353</a></pre>
        </div>
      </p>


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