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<body><span class="vcard"><a class="email" href="mailto:shdownnine@gmail.com" title="shdownnine@gmail.com">shdownnine@gmail.com</a>
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<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Screen suddenly goes black, [drm:valleyview_pipestat_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95367">bug 95367</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
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<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Screen suddenly goes black, [drm:valleyview_pipestat_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95367#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Screen suddenly goes black, [drm:valleyview_pipestat_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95367">bug 95367</a>
from <span class="vcard"><a class="email" href="mailto:shdownnine@gmail.com" title="shdownnine@gmail.com">shdownnine@gmail.com</a>
</span></b>
<pre>(In reply to Ville Syrjala from <a href="show_bug.cgi?id=95367#c3">comment #3</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=124090" name="attach_124090" title="[PATCH for v4.5] drm/i915: Fix watermarks for VLV/CHV">attachment 124090</a> <a href="attachment.cgi?id=124090&action=edit" title="[PATCH for v4.5] drm/i915: Fix watermarks for VLV/CHV">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=95367&attachment=124090'>[review]</a> [review]
> [PATCH for v4.5] drm/i915: Fix watermarks for VLV/CHV
>
> Backport of VLV/CHV watermark fix for 4.5. Please test.</span >
Yep, it fixes the issue — switching workspaces in loop does not reproduce it
anymore. As for the patch for 4.6, I built a kernel with it applied and so far
it’s OK, but since I don’t know a reliable way to reproduce it, I can’t say for
sure. I’ll reopen if I notice it again.
Thanks!</pre>
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