[Bug 58812] New: PlayOnline Viewer: Application runs and works otherwise, but only shows a black screen.

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58812

Bug ID: 58812
           Summary: PlayOnline Viewer: Application runs and works
                    otherwise, but only shows a black screen.
           Product: Wine
           Version: 10.17
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winex11.drv
          Assignee: [e-mail]
          Reporter: [e-mail]
   Regression SHA1: 7abf4432a7dfdc044f0458f2457829038dc497f0.
      Distribution: Gentoo

Created attachment 79467
  --> http://bugs.winehq.org/attachment.cgi?id=79467
terminal output from a bad run

After 7abf4432a7d [1], the PlayOnline Viewer runs and seems functional, but
only shows a black screen.

There doesn't seem to be anything out of the ordinary in the terminal output,
aside from a flood of:

libEGL warning: FIXME: egl/x11 doesn't support front buffer rendering.

Last tested at 'wine-10.17'.

Thank you!

1.
https://gitlab.winehq.org/wine/wine/-/commit/7abf4432a7dfdc044f0458f24578290...