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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 - [BAT][KBL] *ERROR* failed to enable link training"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102359">102359</a>
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<th>Summary</th>
<td>[BAT][KBL] *ERROR* failed to enable link training
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr>
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<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>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>martin.peres@free.fr
</td>
</tr>
<tr>
<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>
<p>
<div>
<pre>On CI_DRM_2989, the machine fi-kbl-7260u produced the following wardning when
running igt@gem_exec_suspend@basic-s3:
[ 299.955251] [drm:intel_enable_shared_dpll [i915]] enabling DPLL 1
[ 299.957459] [drm:intel_power_well_enable [i915]] enabling DDI B IO power
well
[ 299.958752] [drm:intel_dp_set_signal_levels [i915]] Using signal levels
00000000
[ 299.958796] [drm:intel_dp_set_signal_levels [i915]] Using vswing level 0
[ 299.958835] [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis level
0
[ 299.958875] [drm:intel_dp_program_link_training_pattern [i915]] Using DP
training pattern TPS1
[ 299.995390] [drm:drm_dp_dpcd_access] Too many retries, giving up. First
error: -5
[ 299.995415] [drm:intel_dp_start_link_train [i915]] *ERROR* failed to enable
link training
[ 299.995433] [drm:intel_dp_start_link_train [i915]] [CONNECTOR:58:DP-1] Link
Training failed at link rate = 162000, lane count = 1
[ 299.995451] [drm:intel_dp_get_link_train_fallback_values [i915]] *ERROR*
Link Training Unsuccessful
This error can also be triggered easily when running full IGT on shard-kbl:
<a href="https://intel-gfx-ci.01.org/tree/drm-tip/shards.html">https://intel-gfx-ci.01.org/tree/drm-tip/shards.html</a>
Full logs:
<a href="https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_2989/fi-kbl-7260u/igt@gem_exec_suspend@basic-s3.html">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_2989/fi-kbl-7260u/igt@gem_exec_suspend@basic-s3.html</a></pre>
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</p>
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