igt@kms_fbcon_fbt@fbc - fail - Failed assertion: feature->wait_until_enabled(drm->debugfs_fd)
https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5536/shard-apl2/igt@kms_fbcon_fbt@fbc.html
Starting subtest: fbc
(kms_fbcon_fbt:1104) CRITICAL: Test assertion failure function subtest, file ../tests/kms_fbcon_fbt.c:272:
(kms_fbcon_fbt:1104) CRITICAL: Failed assertion: feature->wait_until_enabled(drm->debugfs_fd)
Subtest fbc failed.
**** DEBUG ****
(kms_fbcon_fbt:1104) drmtest-DEBUG: Test requirement passed: !(fd<0)
(kms_fbcon_fbt:1104) DEBUG: Test requirement passed: drm->res
(kms_fbcon_fbt:1104) igt_kms-DEBUG: VT: graphics mode set (mode was 0x0)
(kms_fbcon_fbt:1104) DEBUG: Test requirement passed: feature->supported_on_chipset(drm->debugfs_fd)
(kms_fbcon_fbt:1104) INFO: Modes unset.
(kms_fbcon_fbt:1104) DEBUG: FBC status: FBC disabled: underrun detected
(kms_fbcon_fbt:1104) DEBUG: Test requirement passed: i < drm->res->count_connectors
(kms_fbcon_fbt:1104) igt_fb-DEBUG: igt_create_fb_with_bo_size(width=1920, height=1080, format=XR24(0x34325258), modifier=0x100000000000001, size=0)
(kms_fbcon_fbt:1104) drmtest-DEBUG: Test requirement passed: is_i915_device(fd) && has_known_intel_chipset(fd)
(kms_fbcon_fbt:1104) drmtest-DEBUG: Test requirement passed: is_i915_device(fd) && has_known_intel_chipset(fd)
(kms_fbcon_fbt:1104) igt_fb-DEBUG: igt_create_fb_with_bo_size(handle=1, pitch=7680)
(kms_fbcon_fbt:1104) ioctl_wrappers-DEBUG: Test requirement passed: igt_has_fb_modifiers(fd)
(kms_fbcon_fbt:1104) INFO: Setting 1920x1080 mode for DP connector
(kms_fbcon_fbt:1104) INFO: Screen set.
(kms_fbcon_fbt:1104) DEBUG: FBC status: FBC disabled: underrun detected
(kms_fbcon_fbt:1104) CRITICAL: Test assertion failure function subtest, file ../tests/kms_fbcon_fbt.c:272:
(kms_fbcon_fbt:1104) CRITICAL: Failed assertion: feature->wait_until_enabled(drm->debugfs_fd)
(kms_fbcon_fbt:1104) igt_core-INFO: Stack trace:
(kms_fbcon_fbt:1104) igt_core-INFO: #0 ../lib/igt_core.c:1676 __igt_fail_assert()
(kms_fbcon_fbt:1104) igt_core-INFO: #1 ../tests/kms_fbcon_fbt.c:278 subtest()
(kms_fbcon_fbt:1104) igt_core-INFO: #2 ../tests/kms_fbcon_fbt.c:331 __real_main324()
(kms_fbcon_fbt:1104) igt_core-INFO: #3 ../tests/kms_fbcon_fbt.c:324 main()
(kms_fbcon_fbt:1104) igt_core-INFO: #4 ../csu/libc-start.c:344 __libc_start_main()
(kms_fbcon_fbt:1104) igt_core-INFO: #5 [_start+0x2a]
**** END ****
Subtest fbc: FAIL (11.065s)