igt@kms_setmode@basic - fail - Test assertion failure function check_timings, Failed assertion: fabs(mean - expected) < max(line_time(kmode), 1.718 * stddev)

https://intel-gfx-ci.01.org/tree/intel-xe/IGTPW_11791/shard-dg2-466/igt@kms_setmode@basic.html

Err	
Starting subtest: basic
Starting dynamic subtest: pipe-A-HDMI-A-6
(kms_setmode:2753) CRITICAL: Test assertion failure function check_timings, file ../tests/kms_setmode.c:571:
(kms_setmode:2753) CRITICAL: Failed assertion: fabs(mean - expected) < max(line_time(kmode), 1.718 * stddev)
(kms_setmode:2753) CRITICAL: vblank interval differs from modeline! expected 16666.7us, measured 16711us +- 4.384us, difference 44.7us (10.2 sigma, 3.0 scanlines)
Dynamic subtest pipe-A-HDMI-A-6 failed.