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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [BAT] [CFL only]igt@kms_* - dmesg-warn - *ERROR* Link Training Unsuccessful | *ERROR* LSPCON mode hasn't settled | *ERROR* Error reading LSPCON mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104056#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [BAT] [CFL only]igt@kms_* - dmesg-warn - *ERROR* Link Training Unsuccessful | *ERROR* LSPCON mode hasn't settled | *ERROR* Error reading LSPCON mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104056">bug 104056</a>
from <span class="vcard"><a class="email" href="mailto:jari.tahvanainen@intel.com" title="Jari Tahvanainen <jari.tahvanainen@intel.com>"> <span class="fn">Jari Tahvanainen</span></a>
</span></b>
<pre>Here is example output from 4.15.0-rc9-drm-intel-qa-ww4-commit-59275f1 CFL-1
Detail Value
Returncode 0
Time 0:00:05.903215
Stdout
IGT-Version: 1.21-g37bd27f (x86_64) (Linux:
4.15.0-rc9-drm-intel-qa-ww4-commit-59275f1+ x86_64)
Subtest 1x-modeset-transitions: SUCCESS (3.866s)
Stderr
Environment
PIGLIT_SOURCE_DIR="/home/gfx/intel-graphics/intel-gpu-tools/piglit"
PIGLIT_PLATFORM="mixed_glx_egl"
Command /home/gfx/intel-graphics/intel-gpu-tools/tests/kms_atomic_transition
--run-subtest 1x-modeset-transitions
dmesg
[ 535.365480] [drm:lspcon_wait_mode [i915]] *ERROR* LSPCON mode hasn't settled
[ 535.458196] [drm:lspcon_change_mode.constprop.4 [i915]] *ERROR* Error
reading LSPCON mode
[ 535.458215] [drm:intel_dp_detect [i915]] *ERROR* LSPCON resume failed
[ 535.494824] [drm:intel_dp_start_link_train [i915]] *ERROR* failed to enable
link training
[ 535.494854] [drm:intel_dp_get_link_train_fallback_values [i915]] *ERROR*
Link Training Unsuccessful
[ 540.722489] [drm:lspcon_wait_mode [i915]] *ERROR* LSPCON mode hasn't settled
[ 540.758844] [drm:intel_dp_start_link_train [i915]] *ERROR* failed to enable
link training
[ 540.758898] [drm:intel_dp_get_link_train_fallback_values [i915]] *ERROR*
Link Training Unsuccessful</pre>
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