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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 - GPU Crash because of USB Problem?"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=89666">89666</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>GPU Crash because of USB Problem?
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>XOrg git
          </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>andreas_b123@bluewin.ch
          </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>Created <span class=""><a href="attachment.cgi?id=114453" name="attach_114453" title="crash dump">attachment 114453</a> <a href="attachment.cgi?id=114453&action=edit" title="crash dump">[details]</a></span>
crash dump

I noticed a really strange problem.

I have an Android Phone connected by USB, a cheap Chinese one which sometime
crashes. When the Phone crashes the image on both screens freezes.

When I disconnect the Phone, the freeze on my screens is gone.

I hat this bug more than three times, so I decided now to fill in this bug
report, even it sounds really strange for me.

OS is Ubuntu 14.04. CPU/GPU is Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz

dmesg output:

[ 6454.656894] [drm] stuck on render ring
[ 6454.656897] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 6454.656897] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 6454.656898] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 6454.656899] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 6454.656899] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.</pre>
        </div>
      </p>
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