[Bug 111059] ANGLE DrawBuffersTest.Gaps/ES2_Vulkan test fails on Intel Ubuntu19.04

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111059

            Bug ID: 111059
           Summary: ANGLE DrawBuffersTest.Gaps/ES2_Vulkan test fails on
                    Intel Ubuntu19.04
           Product: Mesa
           Version: git
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Vulkan/intel
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: jie.a.chen at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org
                CC: jason at jlekstrand.net

Created attachment 144698
  --> https://bugs.freedesktop.org/attachment.cgi?id=144698&action=edit
angle_end2end_tests

Device: Mesa DRI Intel(R) Iris Pro 6200 (Broadwell GT3e)  (0x1622)
OpenGL core profile version string: 4.5 (Core Profile) Mesa
19.2.0-develgit-9b0720c436b

To reproduce, simply extract the attachment and run "/angle_end2end_tests
--gtest_filter=DrawBuffersTest.Gaps/ES2_Vulkan".

And you will see the failure below:

../../src/tests/gl_tests/DrawBuffersTest.cpp:195: Failure
Expected equality of these values:
  color
    Which is: Green
  angle::ReadColor(getWindowWidth() / 2, getWindowHeight() / 2)
    Which is: Transparent Black
index 1
[  FAILED  ] DrawBuffersTest.Gaps/ES2_Vulkan, where GetParam() = ES2_Vulkan
(187 ms)



The same test can pass on Intel Win10, Nvidia Ubuntu.

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