igt@kms_cdclk@mode-transition-all-outputs - fail - Test assertion failure function test_mode_transition_on_all_outputs, Failed assertion: cdclk_ref < cdclk_new

http://gfx-ci.igk.intel.com/cibuglog-ng/testresult/1781530767?query_key=efcc4692117be81c45d66bc4d2eb80a4e5e6c1bf

Starting subtest: mode-transition-all-outputs
(kms_cdclk:1626) CRITICAL: Test assertion failure function test_mode_transition_on_all_outputs, file ../../../usr/src/igt-gpu-tools/tests/intel/kms_cdclk.c:362:
(kms_cdclk:1626) CRITICAL: Failed assertion: cdclk_ref < cdclk_new
(kms_cdclk:1626) CRITICAL: error: 288000 >= 288000
Subtest mode-transition-all-outputs failed.