igt@kms_vblank@invalid - fail - Failed assertion: wait_vblank(fd, &vbl) == 0
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_442/fi-kbl-7560u/igt@kms_vblank@invalid.html
Starting subtest: invalid
(kms_vblank:2458) CRITICAL: Test assertion failure function invalid_subtest, file ../tests/kms_vblank.c:481:
(kms_vblank:2458) CRITICAL: Failed assertion: wait_vblank(fd, &vbl) == 0
(kms_vblank:2458) CRITICAL: Last errno: 22, Invalid argument
(kms_vblank:2458) CRITICAL: error: -22 != 0
Subtest invalid failed.