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<body><span class="vcard"><a class="email" href="mailto:john.stultz@linaro.org" title="john.stultz@linaro.org">john.stultz@linaro.org</a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm] GPU HANG: ecode 9:0:0x85dffffb, in compiz [1755], reason: Ring hung, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94927">bug 94927</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">i915 platform</td>
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<td>SKL
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm] GPU HANG: ecode 9:0:0x85dffffb, in compiz [1755], reason: Ring hung, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94927#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm] GPU HANG: ecode 9:0:0x85dffffb, in compiz [1755], reason: Ring hung, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94927">bug 94927</a>
from <span class="vcard"><a class="email" href="mailto:john.stultz@linaro.org" title="john.stultz@linaro.org">john.stultz@linaro.org</a>
</span></b>
<pre>Also, using the 15.10 live-cd, I've triggered the same problem. Which seems
odd, as I don't recall seeing it when I originally installed the machine.
I've also run memcheck and didn't find any issues there, so it doesn't seem
like the memory in the system has suddenly gone bad.
Using i915.enable_rc6=0 doesn't seem to solve the issue. Nor
intel_pstate=disable.
Sometimes those allow the system to run for longer, w/o the graphical
corruption, but when a hang occurs its a hard hang, and I can't recover.</pre>
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