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<body><span class="vcard"><a class="email" href="mailto:huax.lu@intel.com" title="lu hua <huax.lu@intel.com>"> <span class="fn">lu hua</span></a>
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<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [BYT]igt/many kms_flip subcases randomly fail with *ERROR* failed to train DP, aborting"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73037">bug 73037</a>
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<td>NEEDINFO
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<td>REOPENED
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [BYT]igt/many kms_flip subcases randomly fail with *ERROR* failed to train DP, aborting"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73037#c39">Comment # 39</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [BYT]igt/many kms_flip subcases randomly fail with *ERROR* failed to train DP, aborting"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73037">bug 73037</a>
from <span class="vcard"><a class="email" href="mailto:huax.lu@intel.com" title="lu hua <huax.lu@intel.com>"> <span class="fn">lu hua</span></a>
</span></b>
<pre>(In reply to Ville Syrjala from <a href="show_bug.cgi?id=73037#c38">comment #38</a>)
<span class="quote">> Can you retest with the latest nightly now that all the pps fixes have gone
> in?
>
> In addition you may want to test this patch:
> <a href="http://patchwork.freedesktop.org/patch/37945/">http://patchwork.freedesktop.org/patch/37945/</a>
> It should eliminate all self inflicted link training failures, but it may
> make some tests fail outright since the kernel will reject the invalid
> connector combination instead of pretending that it's supported.</span >
Run kms_flip on latest -nightly kernel, execute about 80 subcases. I don't meet
this error, some subcases have "[ 5086.662683] [drm:__vlv_force_wake_get
[i915]] *ERROR* Timed out: waiting for Render to ack."
Run kms_plane 5 cycles, this error doesn't exist.</pre>
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