Comment # 30 on bug 1186341 from Martin Wilck

Latest TW update, enabled setting XLIB_SKIP_ARGB_VISUALS=1, I can *not*
reproduce this any more, like before in comment 16.

emacs-x11-27.2-2.1.x86_64
libgtk-3-0-3.24.29-1.3.x86_64
libX11-6-1.7.1-2.1.x86_64

xdpyinfo shows no differences wrt comment 15.
Last time this happened, I saw the issue again one day later...

I guess for now the change commenting out XLIB_SKIP_ARGB_VISUALS=1 should be
reverted, and I'll re-open if I see this again (hopefully that won't happen).