[Bug 92594] [ILK] Piglit/spec/opengl_1.1/line-aa-width fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92594

            Bug ID: 92594
           Summary: [ILK] Piglit/spec/opengl_1.1/line-aa-width fails
           Product: Mesa
           Version: git
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: idr at freedesktop.org
          Reporter: rhyskidd at gmail.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org
                CC: christophe.prigent at intel.com, huax.lu at intel.com
        Depends on: 90367

System Environment:
--------------------------
Software versions:
    3.19.0-31-generic
    OpenGL version string: 2.1 Mesa 11.1.0-devel (git-7182498)

GPU hardware:
    OpenGL renderer string: Mesa DRI Intel(R) Ironlake Mobile 
    00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor
Integrated Graphics Controller [8086:0046] (rev 02)

CPU hardware:
    x86_64
    Intel(R) Core(TM) i5 CPU       M 580  @ 2.67GHz

Bug detailed description:
-----------------------------
a9b04d8a0d96922a49ac7eb1b91b3a376a959f64 series fixed i965 gen6+ platforms, but
ILK with the latest mesa master continues to fail this piglit test.

Note i915 platforms such as PNV are separately tracked in bug 90367, as the fix
will hit a different driver. 


Output:
$ bin/line-aa-width -auto
Line from 0,2-30,3 had bad thickness (min < 0.25):
min coverage: 0.137255
avg coverage: 0.800302
max coverage: 1.000000
Line from 30,3-60,6 had bad thickness (avg / min > 2.0):
min coverage: 0.407843
avg coverage: 0.834389
max coverage: 1.000000
PIGLIT: {"result": "fail" }


Reproduce steps:
---------------------------- 
1. xinit
2. bin/line-aa-width -auto

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