[Bug 53214] New: d3d11:d3d11 - test_negative_viewports() fails in the TestBot VMs

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53214

            Bug ID: 53214
           Summary: d3d11:d3d11 - test_negative_viewports() fails in the
                    TestBot VMs
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: directx-d3d
          Assignee: wine-bugs at winehq.org
          Reporter: fgouget at codeweavers.com
      Distribution: ---

d3d11:d3d11 - test_negative_viewports() fails in the TestBot VMs:

d3d11.c:28330: Test succeeded inside todo block: Got 0xffffffff, expected
0xffffffff at (640, 480, 1), sub-resource 0.
d3d11.c:28339: Test succeeded inside todo block: Got 0xffffffff, expected
0xffffffff at (640, 480, 1), sub-resource 0.
d3d11.c:28330: Test failed: Got 0xffffffff, expected 0xff00ff00 at (639, 479,
0), sub-resource 0.
d3d11.c:28339: Test failed: Got 0xffffffff, expected 0xff00ff00 at (639, 479,
0), sub-resource 0.
d3d11.c:28330: Test failed: Got 0xffffffff, expected 0xff00ff00 at (639, 479,
0), sub-resource 0.
d3d11.c:28339: Test failed: Got 0xffffffff, expected 0xff00ff00 at (639, 479,
0), sub-resource 0.

https://test.winehq.org/data/patterns.html#d3d11:d3d11

These failures:
* Don't happen on Debian 11 + Intel / KDE
* Happen on Debian 11 + QXL + single-monitor
* Happen on Debian 11 + QXL + multi-monitor
* Happen on Debian Testing + QXL + multi-monitor

So they seems to be related to the VMs QXL GPU.

Note that despite being systematic these failures could cause false positives
due to the test multi-threading (see bug 53212).

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