[Bug 86226] New: [IVB Regression]igt/kms_setmode/invalid-clone-single-crtc fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86226

            Bug ID: 86226
           Summary: [IVB
                    Regression]igt/kms_setmode/invalid-clone-single-crtc
                    fails
           Product: DRI
           Version: unspecified
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: high
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: huax.lu at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 109374
  --> https://bugs.freedesktop.org/attachment.cgi?id=109374&action=edit
dmesg

==System Environment==
--------------------------
Regression: Yes
good commit: 4241f00ad1f6c906486ee05ebf35b4251c59ef5c
bad commit: 477f799e966db4c36ca40198e1f48ff0af69e319

Non-working platforms: IVB

==kernel==
--------------------------
drm-intel-nightly/9a7620f405895714b4e0dc3181a8328b4406287e

==Bug detailed description== 
It fails on IVB with -queued and -nightly kernel. It works well on -fixes
kernel.

output:
IGT-Version: 1.8-g50d539e (x86_64) (Linux:
3.18.0-rc3_drm-intel-nightly_9a7620_20141112+ x86_64)
Testing: invalid-clone-single-crtc 2 connector combinations
  Test id#1 CRTC count 1
    CRTC[8] [Pipe A] Mode: 640x480 at 60Hz Connectors: HDMI-A-1[21] (NC),
HDMI-A-2[28] (NC)
Test assertion failure function test_crtc_config, file kms_setmode.c:431:
Failed assertion: config_failed == !!(tconf->flags & TEST_INVALID)
Last errno: 2, No such file or directory
Subtest invalid-clone-single-crtc: FAIL (0.063s)

==Reproduce steps==
---------------------------- 
1. ./kms_setmode --run-subtest invalid-clone-single-crtc

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