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<body><span class="vcard"><a class="email" href="mailto:matthew.d.roper@intel.com" title="Matt Roper <matthew.d.roper@intel.com>"> <span class="fn">Matt Roper</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - [CI][DRMTIP] igt@kms_flip@modeset-vs-vblank-race-* - fail - Failed assertion: set_mode(o, o->fb_ids[o->current_fb_id], 0, 0) == 0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111777">bug 111777</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;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>DUPLICATE
</td>
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<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - [CI][DRMTIP] igt@kms_flip@modeset-vs-vblank-race-* - fail - Failed assertion: set_mode(o, o->fb_ids[o->current_fb_id], 0, 0) == 0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111777#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - [CI][DRMTIP] igt@kms_flip@modeset-vs-vblank-race-* - fail - Failed assertion: set_mode(o, o->fb_ids[o->current_fb_id], 0, 0) == 0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111777">bug 111777</a>
from <span class="vcard"><a class="email" href="mailto:matthew.d.roper@intel.com" title="Matt Roper <matthew.d.roper@intel.com>"> <span class="fn">Matt Roper</span></a>
</span></b>
<pre>Link training failure:
<7> [583.559919] [drm:intel_dp_start_link_train [i915]] Channel equalization
failed 5 times
<7> [583.560117] [drm:intel_dp_start_link_train [i915]] [CONNECTOR:248:DP-4]
Link Training failed at link rate = 270000, lane count = 2
causes us to downgrade the link rate to 162000 and that in turn leads to
subsequent modeset failure due to no longer having enough bandwidth to support
the requested mode:
<7> [583.898138] [drm:intel_dp_compute_config [i915]] DP link computation with
max lane count 2 max rate 162000 max bpp 24 pixel clock 148500KHz
<7> [583.898171] [drm:intel_dp_compute_config [i915]] Force DSC en = 0
<7> [583.898205] [drm:intel_atomic_check [i915]] Encoder config failure: -22
These link training failures which lead to subsequent modeset failure is a
common problem on fi-icl-u4; marking as duplicate of <a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][DRMTIP] Random tests - fail - Failed assertion: ret == 0, error: -22 != 0"
href="show_bug.cgi?id=111185">bug 111185</a>.
*** This bug has been marked as a duplicate of <a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][DRMTIP] Random tests - fail - Failed assertion: ret == 0, error: -22 != 0"
href="show_bug.cgi?id=111185">bug 111185</a> ***</pre>
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