[Bug 109969] Multiple graphical problems on Microsoft Flight Simulator X: Steam Edition

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109969

            Bug ID: 109969
           Summary: Multiple graphical problems on Microsoft Flight
                    Simulator X: Steam Edition
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/Iris
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: leozinho29_eu at hotmail.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Created attachment 143629
  --> https://bugs.freedesktop.org/attachment.cgi?id=143629&action=edit
apitrace and video

It was observed some graphical bugs on Microsoft Flight Simulator X: Steam
Edition when playing it on Steam using Steam Play. Steam Play version used was
3.16-8 Beta.

One of the graphical bugs happen on the menu, where flight settings can be
chosen. The bug starts when visualizing the chosen aircraft. Nearly the entire
interface becomes black, with only the aircraft preview visible.

The other graphical bugs happens on the simulation: there are many graphical
errors happening, with the sky blinking very fast, polygons appearing randomly
and menus not loading text.

SEIZURE WARNING: the attached file has an apitrace and a video showing the
issue. The apitrace open multiple windows, one of them shows the menu while
other shows the simulation, and it replays considerably better (but not bug
free) when using i965 instead of iris. SEIZURE WARNING: significant portions of
the screen blink very fast.

System specifications:

Processor: Intel Core i3-6100U;
Video: Intel HD Graphics 520;
Architecture: amd64;
RAM memory: 8 GB;
Mesa: 19.1.0-devel (git-d086d16b81);
Kernel version: 5.0.0-7-generic;
Distribution: Xubuntu 18.04.2 amd64.

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