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            <b><a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - gfx corruption on windowed 3d-apps running on dGPU"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=101691#c39">Comment # 39</a>
              on <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - gfx corruption on windowed 3d-apps running on dGPU"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=101691">bug 101691</a>
              from <span class="vcard"><a class="email" href="mailto:ethan.hsieh@canonical.com" title="Ethan Hsieh <ethan.hsieh@canonical.com>"> <span class="fn">Ethan Hsieh</span></a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=133862" name="attach_133862" title="Xorg.0.log (ubuntu 17.04 + intel&amdgpu)">attachment 133862</a> <a href="attachment.cgi?id=133862&action=edit" title="Xorg.0.log (ubuntu 17.04 + intel&amdgpu)">[details]</a></span>
Xorg.0.log (ubuntu 17.04 + intel&amdgpu)

I install Ubuntu 17.4 and can reproduce corruption issue in AC/DC mode.
Xorg.0.log:
[    21.309] (II) LoadModule: "modesetting"
[    21.309] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[    21.310] (II) Module modesetting: vendor="X.Org Foundation"

But, the issue in DC mode is gone after I add two config files.

/usr/share/X11/xorg.conf.d/20-intel.conf 
Section "Device"
        Identifier "Intel Graphics"
        Driver "Intel"
        Option "DRI" "3"
EndSection

/usr/share/X11/xorg.conf.d/30-amdgpu.conf 
Section "Device"
        Identifier "AMDGPU"
        Driver "amdgpu"
        Option "DRI" "3"
EndSection</pre>
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