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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#c24">Comment # 24</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>Created <span class=""><a href="attachment.cgi?id=102179" name="attach_102179" title="dmesg(patch)">attachment 102179</a> <a href="attachment.cgi?id=102179&action=edit" title="dmesg(patch)">[details]</a></span>
dmesg(patch)
Applay Todd's patch.
root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip
--run-subtest absolute-wf_vblank-interruptible
IGT-Version: 1.7-g67e29a3 (x86_64) (Linux: 3.16.0-rc2_kcloud_dc05ed_20140703+
x86_64)
Using monotonic timestamps
Beginning absolute-wf_vblank-interruptible on crtc 6, connector 25
1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
...........................................................................................
absolute-wf_vblank-interruptible on crtc 6, connector 25: PASSED
Beginning absolute-wf_vblank-interruptible on crtc 11, connector 25
1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
................................................................................................................................................................................
absolute-wf_vblank-interruptible on crtc 11, connector 25: PASSED
Subtest absolute-wf_vblank-interruptible: SUCCESS
root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r | egrep
"<[1-3]>" |grep drm
<3>[ 66.649840] [drm:intel_pipe_config_compare] *ERROR* mismatch in
has_dp_encoder (expected 1, found 0)
<3>[ 66.657152] [drm:valleyview_pipestat_irq_handler] *ERROR* pipe B underrun
<3>[ 83.791251] [drm:intel_pipe_config_compare] *ERROR* mismatch in
has_dp_encoder (expected 1, found 0)
<3>[ 83.791896] [drm:valleyview_pipestat_irq_handler] *ERROR* pipe A underrun</pre>
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