[Bug 59841] New: Minor rendering issue with gen 3 on windows decorations with unity

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=59841

          Priority: medium
            Bug ID: 59841
          Assignee: chris at chris-wilson.co.uk
           Summary: Minor rendering issue with gen 3 on windows
                    decorations with unity
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: minor
    Classification: Unclassified
                OS: Linux (All)
          Reporter: sergio.callegari at gmail.com
          Hardware: x86 (IA32)
            Status: NEW
           Version: git
         Component: Driver/intel
           Product: xorg

On an ubuntu quantal atom netbook with: kernel 3.7.4; the latest intel driver
(approximately 2.20.19, actually at git commit 10f549... dated 22/01/13);
xorg 2.13 as shipped by ubuntu; libgl1 approximately at 9.1, actually at git
commit 148fc6 dated 22/01/13.

The machine has gen3 intel graphics, that I am using with the driver in sna
acceleration mode.

I am experiencing a rendering issue with the unity desktop.

Here 'active' windows are shown properly. However 'inactive' windows have their
border decoration that is corrupted and shown as a mixture of pixels of
multiple colors (particularly at the corners). May have to do with the fact
that unity shows luminecence and shadows around the windows and varies them
depending on the active/inactive state.

Does not impact usability, so I have marked the issue as minor.

Can provide a screenshot if useful.

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