Hi SDLers,
I got reproducible crashes in XCloseDisplay called from X11_VideoQuit
upon the second call to SDL_SetVideoMode (first time worked without
problems).
Closer inspection showed that the problem was reopening the second
display connection GFX_Display. Video drivers with ‘Tungsten’ in the
OpenGL vendor string (e.g. Intel integrated chipsets, Radeon 7000) then
crashed.
The brute-force hack is to keep the GFX_Display connection open:
In src/video/x11/SDL_x11video.c
replace
GFX_Display = XOpenDisplay(display);
with
if (!GFX_Display) GFX_Display = XOpenDisplay(display);
delete
/* Close the X11 graphics connection */
if ( GFX_Display != NULL ) {
XCloseDisplay(GFX_Display);
GFX_Display = NULL;
}
Apologies that I don’t have a minimal case example at hand, but I hope
the above is enough for insiders to know what goes wrong and come up
with a proper ‘clean’ fix… 
CU,
Elmar–
Elmar Krieger, PhD
YASARA Biosciences & CMBI Outstation Austria
Neue-Welt-Hoehe 13/b
A-8042 Graz
Austria/Europe
Ww
c(@@)c
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