[Bug 60002] [PNV]I-G-T/=?UTF-8?Q?kms=5Fflip=20subtest=EF=BC=9A?='blocking-absolute-wf_vblank' fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=60002

--- Comment #7 from cancan,feng <cancan.feng at intel.com> ---
(In reply to comment #6)
> Could you rerun this test? It's not clear where exactly in the source the
> failure happens, the new igt_assert() should help in this.

I use latest nightly kernel to run this case again and find this issue always
exist. 

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[root at x-pnv1 tests]# ./kms_flip --run-subtest blocking-absolute-wf_vblank
Using monotonic timestamps
no crtc with a compatible encoder (crtc_idx_mask 00000001)
Beginning blocking-absolute-wf_vblank on crtc 4, connector 5
  1024x600 60 1024 1048 1184 1438 600 603 604 628 0xa 0x48 54200
.............................................................
blocking-absolute-wf_vblank on crtc 4, connector 5: PASSED

Subtest blocking-absolute-wf_vblank: SUCCESS
[root at x-pnv1 tests]# ./kms_flip --run-subtest blocking-absolute-wf_vblank
Using monotonic timestamps
no crtc with a compatible encoder (crtc_idx_mask 00000001)
Beginning blocking-absolute-wf_vblank on crtc 4, connector 5
  1024x600 60 1024 1048 1184 1438 600 603 604 628 0xa 0x48 54200
.Test assertion failure function run_test_step, file kms_flip.c:831:
Failed assertion: (do_wait_for_vblank(o, o->pipe, target_seq, &vbl_reply)) == 0
Subtest blocking-absolute-wf_vblank: FAIL
DPMS property not found on 5

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