It seems renouveau doesn't cope well with missing GLX extension, unlike e.g. glxgears: rmh at cesc:~/renouveau$ glxgears Xlib: extension "GLX" missing on display ":0.0". Error: couldn't get an RGB, Double-buffered visual rmh at cesc:~/renouveau$ ./renouveau detect_devices: Creating probe window failed. We tried to create a window by using SDL. Our OpenGL tests require a stencil buffer whichusually is not available with 16-bit desktop colordepth. If you are using 16-bit colors, please try24-bit instead. Device detection failed. Segmentation fault rmh at cesc:~/renouveau$ gdb ./renouveau [...] (gdb) r [...] (gdb) bt #0 0xb79b694f in glXChannelRectSyncSGIX () from /usr/lib/libGL.so.1 #1 0x09e48838 in ?? () #2 0xb79ec660 in ?? () from /usr/lib/libGL.so.1 #3 0x09e48838 in ?? () #4 0xb79b51a6 in glXChannelRectSyncSGIX () from /usr/lib/libGL.so.1 #5 0x09e48838 in ?? () #6 0x09e48838 in ?? () #7 0xb7ce2b24 in ?? () from /usr/lib/libX11.so.6 #8 0x09e56080 in ?? () #9 0xb7c10746 in XCloseDisplay (dpy=0x9e48838) at ../../src/ClDisplay.c:67 #10 0xb7e7c8fe in XCloseDisplay (a=0x9e48838) at ../../src/video/x11/SDL_x11sym.h:33 #11 0xb7e8607b in X11_VideoQuit (this=0x9e43790) at ../../src/video/x11/SDL_x11video.c:1388 #12 0xb7e75890 in SDL_VideoQuit () at ../../src/video/SDL_video.c:1344 #13 0xb7e4a544 in SDL_QuitSubSystem (flags=65535) at ../../src/SDL.c:200 #14 0xb7e4a5be in SDL_Quit () at ../../src/SDL.c:220 #15 0x08057ccd in cleanup () at main.c:182 #16 0xb7d13514 in exit () from /lib/i686/cmov/libc.so.6 #17 0xb7cfc058 in __libc_start_main () from /lib/i686/cmov/libc.so.6 #18 0x0804a311 in _start () (gdb) Sorry for not providing a patch, but I'm quite novice at X programming and run out of time. Hope that helps anyway. -- Robert Millan <GPLv2> I know my rights; I want my phone call! <DRM> What use is a phone call, if you are unable to speak? (as seen on /.)