. Thread 1 (process 7636): #0 0x00007faca91fdbcd in glXGetFBConfigs () from /usr/lib/libGL.so.1 #1 0x00007faca91feaaa in glXChooseFBConfigSGIX () from /usr/lib/libGL.so.1 #2 0x0000000000402bbd in print_screen_info (dpy=0x1956010, scrnum=0, allowDirect=1, limits=0 '\0') at glxinfo.c:430 fbAttribSingle = {32785, 1, 8, 1, 9, 1, 10, 1, 5, 1, 0} fbAttribDouble = {32785, 1, 8, 1, 9, 1, 10, 1, 0} configs = nConfigs = 32767 win = attribSingle = {4, 8, 1, 9, 1, 10, 1, 0} attribDouble = {4, 8, 1, 9, 1, 10, 1, 5, 0} attr = {background_pixmap = 128, background_pixel = 140736169739312, border_pixmap = 172, border_pixel = 26591444, bit_gravity = 26566672, win_gravity = 0, backing_store = 1, backing_planes = 128, backing_pixel = 140379545732992, save_under = 1, event_mask = 140379553056512, do_not_propagate_mask = 0, override_redirect = 0, colormap = 140379545734512, cursor = 140379543177414} root = 37 ctx = (GLXContext) 0x0 visinfo = (XVisualInfo *) 0x0 #3 0x0000000000402efb in main (argc=1, argv=) at glxinfo.c:1159 displayName = 0x0 dpy = numScreens = 1 scrnum = 0 mode = Normal findBest = 0 '\0' limits = allowDirect = 1 i =