igt@kms_concurrent@pipe-[abc] - fail - Failed assertion: ret == 0, Last errno: 22, Invalid argument, error: -22 != 0

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_920/fi-ehl-2/igt@kms_concurrent@pipe-b.html

Err	
Starting subtest: pipe-B
(kms_concurrent:941) igt_kms-CRITICAL: Test assertion failure function do_display_commit, file ../lib/igt_kms.c:3795:
(kms_concurrent:941) igt_kms-CRITICAL: Failed assertion: ret == 0
(kms_concurrent:941) igt_kms-CRITICAL: Last errno: 22, Invalid argument
(kms_concurrent:941) igt_kms-CRITICAL: error: -22 != 0
Subtest pipe-B failed.