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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GM45][3.17/3.18] drm:intel_pipe_config_compare (underrun errors)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86951">86951</a>
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<tr>
<th>Summary</th>
<td>[GM45][3.17/3.18] drm:intel_pipe_config_compare (underrun errors)
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg git
</td>
</tr>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
</tr>
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<th>Component</th>
<td>DRM/Intel
</td>
</tr>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>shawn.starr@rogers.com
</td>
</tr>
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<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>
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<div>
<pre>Kernels 3.17.x/3.18.0-0.rcX.git0.1.fc22.x86_64
Mesa git master (10.5)
DDX: xorg-x11-drv-intel-2.99.916-3.20141117.fc21.x86_64
Using the Intel GM 45 chipset, any 3D rendering is frozen (rendering
offscreen). I don't know when this broke
[ 45.601062] [drm:intel_pipe_config_compare] *ERROR* mismatch in pipe_src_w
(expected 0, found 4096)
[ 45.609659] [drm:i965_irq_handler] *ERROR* pipe A underrun
[ 45.616178] [drm:intel_pipe_config_compare] *ERROR* mismatch in pipe_src_w
(expected 0, found 4096)
[ 45.902070] [drm:i9xx_check_fifo_underruns] *ERROR* pipe A underrun
[ 45.903073] [drm:i965_irq_handler] *ERROR* pipe A underrun
OpenGL renderer string: Mesa DRI Mobile Intel® GM45 Express Chipset
OpenGL version string: 2.1 Mesa 10.5.0-devel (git-4aec928)
running glxgears shows output that it is rendering frames but the glxgears
window itself is frozen, same with any GL game, frozen on startup (rendering
offscreen).</pre>
</div>
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