[Bug 90046] New: [HSW ] test S3 with 3pipe cause *ERROR*

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90046

            Bug ID: 90046
           Summary: [HSW ] test S3 with 3pipe cause *ERROR*
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: bin.a.xu at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 115106
  --> https://bugs.freedesktop.org/attachment.cgi?id=115106&action=edit
dmesg

==System Environment==
--------------------------
Regression: Not sure.I can not find a good commit.
Non-working platforms: Hasswell.

==kernel==
--------------------------
-nightly: 044307a99b418258ac0d775460d73b20b80277c1 (fails)
    drm-intel-nightly: 2015y-04m-09d-15h-11m-30s UTC integration manifest
-queued: 47b26b288ce8cb3e1348f83b2193851bafb6a957 (fails )
    drm/i915: Remove vestigal DRI1 ring quiescing code
-fixes: 5df0582bf036bb5f9a8ad8db5884fe13a55347d1 (fails)
    drm/i915/vlv: remove wait for previous GFX clk disable request

==Bug detailed description==
-----------------------------
test S3 with 3pipe cause *ERROR*

Output:
[root at x-hswm24 ~]# dmesg | grep ERROR
[    2.275176] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR*
uncleared pch fifo underrun on pch transcoder A
[    2.275204] [drm:cpt_irq_handler [i915]] *ERROR* PCH transcoder A FIFO
underrun
[    2.288750] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
uncleared fifo underrun on pipe B
[    2.288780] [drm:ironlake_irq_handler [i915]] *ERROR* CPU pipe B FIFO
underrun

==Reproduce steps==
---------------------------- 
1. Connect 3 monitors
2. echo mem > /sys/power/state

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