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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - i915: GPU hang with intel_iommu=on"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100203">100203</a>
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<th>Summary</th>
<td>i915: GPU hang with intel_iommu=on
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>XOrg git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>DRM/Intel
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>stsp@list.ru
</td>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=130221" name="attach_130221" title="dmesg">attachment 130221</a> <a href="attachment.cgi?id=130221&action=edit" title="dmesg">[details]</a></span>
dmesg
With intel_iommu=on in command line, GPU hangs at
boot, after which, the entire machine freeze happens.
I managed to retrieve logs by using "linux=single" -
it helps to avoid the full machine freeze sometimes
(maybe because X doesn't start then), but its still
a blank screen.
intel_iommu=on,igfx_off fixes the problem but I guess
this will not allow to pass-through the video card,
is this correct?</pre>
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