1.1 --- a/src/drivers/video_glx.c	Mon May 26 11:01:42 2008 +0000
     1.2 +++ b/src/drivers/video_glx.c	Tue May 27 23:59:54 2008 +0000
     1.3 @@ -20,6 +20,7 @@
     1.4  #include "display.h"
     1.5  #include <X11/Xlib.h>
     1.6  #include <GL/glx.h>
     1.7 +#include <string.h>
     1.8  #include "pvr2/pvr2.h"
     1.9  #include "pvr2/glutil.h"
    1.10  #include "drivers/video_glx.h"
    1.11 @@ -112,7 +113,16 @@
    1.12  						  fb_attribs, &nelem );
    1.13  
    1.14  	if( configs == NULL || nelem == 0 ) {
    1.15 -	    /* Didn't work. Fallback to 1.2 methods */
    1.16 +	    /* Try a 16-bit depth buffer and see if it helps */
    1.17 +	    fb_attribs[5] = 16;
    1.18 +	    configs = glXChooseFBConfig( display, screen, fb_attribs, &nelem );
    1.19 +	    if( nelem > 0 ) {
    1.20 +                WARN( "Using a 16-bit depth buffer - expect video glitches" );
    1.21 +            }
    1.22 +
    1.23 +        }
    1.24 +        if( configs == NULL || nelem == 0 ) {
    1.25 +	    /* Still didn't work. Fallback to 1.2 methods */
    1.26  	    glx_fbconfig_supported = FALSE;
    1.27  	    glx_pbuffer_supported = FALSE;
    1.28  	} else {
    1.29 @@ -125,6 +135,14 @@
    1.30      if( !glx_fbconfig_supported ) {
    1.31          int attribs[] = { GLX_RGBA, GLX_DEPTH_SIZE, 24, 0 };
    1.32  	glx_visual = glXChooseVisual( display, screen, attribs );
    1.33 +        if( glx_visual == NULL ) {
    1.34 +            /* Try the 16-bit fallback here too */
    1.35 +            attribs[2] = 16;
    1.36 +            glx_visual = glXChooseVisual( display, screen, attribs );
    1.37 +            if( glx_visual != NULL ) {
    1.38 +                WARN( "Using a 16-bit depth buffer - expect video glitches" );
    1.39 +            }
    1.40 +        }
    1.41      }
    1.42  
    1.43      if( glx_visual == NULL ) {