igt@kms_flip@subtests - fail - Test assertion failure function calibrate_ts, Failed assertion: 3 * stddev / mean < 0.005

https://gfx-ci.igk.intel.com/cibuglog-ng/testresult/1950641370?query_key=d6da3a3e8da57fb7e2e72ccc3cf2579349353dde

Starting subtest: flip-vs-absolute-wf_vblank
Starting dynamic subtest: A-HDMI-A1
(kms_flip:2356) CRITICAL: Test assertion failure function calibrate_ts, file ../tests/kms_flip.c:1454:
(kms_flip:2356) CRITICAL: Failed assertion: 3 * stddev / mean < 0.005
Dynamic subtest A-HDMI-A1 failed.
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