[Bug 52331] New: 3D game screen blank except in <ALT> <TAB> view (Ubuntu 21.10)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52331

Bug ID: 52331
           Summary: 3D game screen blank except in <ALT> <TAB> view
                    (Ubuntu 21.10)
           Product: Wine
           Version: 7.0-rc3
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

I'm trying to run two classic open source flight sims, Rowan's Mig Alley and
Rowan's Battle of Britain, on Ubuntu 21.10 with wine 7.0 rc3 (Staging). With
virtual desktop turned off, a black square occludes the 3D view. Perhaps this
is a clue about what is going on - you can fly the aircraft by holding down
<ALT> <TAB> task switcher display, although the 3D view is, of course, postage
stamp size in this view.

Also holding down the keyboard <CTRL> F6 keyboard focus shortcut causes the
display to flash between a black screen and the 3D flight sim view.

If I turn on virtual desktop in wine cfg, the 3D flight sim view works in both
games. However, the 2D game canvas view is missing many icons when virtual
desktop is on. (The 2D view works fine if virtual desktop is off).

Thus there are two bugs:
1. without virtual desktop, a black square occludes the 3D flight sim view
2. with virtual desktop on, the 2D game canvas view is missing many icons.

Please suggest any ideas about how to fix either of these two bugs.

These games are open source. Linux/wine installers for the games are here:
https://github.com/sim-museum/esports-f ... igAlley.sh
https://github.com/sim-museum/esports-f ... Britain.sh

The games package can be downloaded here:
https://github.com/sim-museum/esports-for-engineers