[Bug 83471] [i965 Regression]igt/kms_flip suspend subcases fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83471

--- Comment #6 from lu hua <huax.lu at intel.com> ---
(In reply to Daniel Vetter from comment #5)
> Can you please retest on latest -nightly? We've just merged a few flip fixes.

It still fails on latest -nightly kernel.
[root at x-ivb9 tests]# ./kms_flip --run-subtest vblank-vs-dpms-suspend
IGT-Version: 1.8-gf333981 (x86_64) (Linux:
3.18.0_drm-intel-nightly_34d267_20141209+ x86_64)
Using monotonic timestamps
Beginning vblank-vs-dpms-suspend on crtc 8, connector 18
  1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x40 65000
.rtcwake: wakeup from "mem" using /dev/rtc0 at Wed Dec 10 14:22:24 2014
.rtcwake: wakeup from "mem" using /dev/rtc0 at Wed Dec 10 14:22:29 2014
Test assertion failure function check_state, file kms_flip.c:636:
Failed assertion: timercmp(&es->last_received_ts, &es->current_ts, <)
vblank ts before the vblank was issued!
timerdiff -1s, 986684us
Subtest vblank-vs-dpms-suspend: FAIL (1.144s)

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