On Friday 08 October 2004 10:25 am, Derek Jennings wrote:
> On Friday 08 October 2004 16:09, Sevatio wrote:
> > Derek Jennings wrote:
> > > On Friday 08 October 2004 05:39, Kassem Nasser wrote:
> > >>Hi all ,
> > >>I am using currently Mandrake10.0 and I was trying to run
> > >> an OpenGL program when I got the following error:
> > >>Xlib: extension "GLX" missing on display ":0.0"
> > >>And by the way anybody knows any mailinglist specific for
> > >> OpenGL. Can any body help me out
> > >>Best Regards,
> > >
> > > It means that the GLX module is not loaded.
> > > There are a number of reasons why this might be.
> > >
> > > 1/ You are using a video driver that does not support GLX
> > > such as 'vesa'.
> > >
> > > 2/ You have a GLX capable video driver such as 'nv', but
> > > GLX is disabled in your /etc/X11/XF86Config-4 file (Look
> > > to see if the line "Load glx" is commented out )
> > >
> > > 3/ You have GLX enabled but it is the wrong library. For
> > > example if you are using the closed source 'nvidia' driver
> > > you must also be using the Nvidia GLX module too.
> > >
> > > What to do :-
> > > Look at the log file /var/log/XFree86.0.log it will tell
> > > you precisely which modules loaded and why anything failed.
> > >
> > > Tell us which driver you are using. It will be listed in
> > > the file /etc/X11/XF86Config-4 in the "Device" section.
> > > The glx module should be listed in the "module" section.
> > >
> > > Tell us what video card you have.
> > >
> > > derek
> >
> > What's the line one should use so that it loads the nvidia
> > glx driver
>
> Load /usr/X11R6/lib/modules/extensions/libglx.so
>
>
> but first the nvidia driver has to be downloaded and compiled
> if you have not already done so. Also the nvidia glx driver has
> to match the release number of the nvidia kernel module.
>
> So your video card is Nvidia?
>
> derek
The proprietary 'nvidia' driver is _not_ needed for OpenGL
support. The GPL 'nv' driver actually has better GL* support.
I have a GeF4 usin the 'nv' driver. Usually the problem is that
the line Load "glx" has been commented out (ie, disabled) in
whatever XF86config file the system is usin. Removing the '#'
from the line and re-starting X should fix this if the hardware
supports GLX.
tom $ glxinfo
name of display: :0.0
display: :0 screen: 0
direct rendering: No
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
GLX_ARB_multisample, GLX_EXT_visual_info,
GLX_EXT_visual_rating,
GLX_EXT_import_context, GLX_OML_swap_method,
GLX_SGI_make_current_read,
GLX_SGIS_multisample, GLX_SGIX_fbconfig
client glx vendor string: SGI
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample,
GLX_EXT_import_context,
GLX_EXT_visual_info, GLX_EXT_visual_rating,
GLX_MESA_allocate_memory,
GLX_MESA_swap_control, GLX_MESA_swap_frame_usage,
GLX_OML_swap_method,
GLX_OML_sync_control, GLX_SGI_make_current_read,
GLX_SGI_swap_control,
GLX_SGI_video_sync, GLX_SGIS_multisample, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group
GLX extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample,
GLX_EXT_import_context,
GLX_EXT_visual_info, GLX_EXT_visual_rating,
GLX_OML_swap_method,
GLX_SGI_make_current_read, GLX_SGIS_multisample,
GLX_SGIX_fbconfig
OpenGL vendor string: Mesa project: www.mesa3d.org
OpenGL renderer string: Mesa GLX Indirect
OpenGL version string: 1.2 (1.5 Mesa 6.1)
OpenGL extensions:
GL_ARB_depth_texture, GL_ARB_imaging, GL_ARB_multitexture,
GL_ARB_point_parameters, GL_ARB_point_sprite, GL_ARB_shadow,
GL_ARB_shadow_ambient, GL_ARB_texture_border_clamp,
GL_ARB_texture_cube_map, GL_ARB_texture_env_add,
GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar,
GL_ARB_texture_env_dot3, GL_ARB_texture_mirrored_repeat,
GL_ARB_transpose_matrix, GL_ARB_window_pos, GL_EXT_abgr,
GL_EXT_bgra,
GL_EXT_blend_color, GL_EXT_blend_func_separate,
GL_EXT_blend_logic_op,
GL_EXT_blend_minmax, GL_EXT_blend_subtract,
GL_EXT_clip_volume_hint,
GL_EXT_copy_texture, GL_EXT_draw_range_elements,
GL_EXT_fog_coord,
GL_EXT_multi_draw_arrays, GL_EXT_packed_pixels,
GL_EXT_point_parameters,
GL_EXT_polygon_offset, GL_EXT_rescale_normal,
GL_EXT_secondary_color,
GL_EXT_separate_specular_color, GL_EXT_shadow_funcs,
GL_EXT_stencil_two_side, GL_EXT_stencil_wrap,
GL_EXT_subtexture,
GL_EXT_texture, GL_EXT_texture3D, GL_EXT_texture_edge_clamp,
GL_EXT_texture_env_add, GL_EXT_texture_env_combine,
GL_EXT_texture_env_dot3, GL_EXT_texture_lod_bias,
GL_EXT_texture_object,
GL_EXT_texture_rectangle, GL_EXT_vertex_array,
GL_APPLE_packed_pixels,
GL_ATI_texture_env_combine3, GL_ATI_texture_mirror_once,
GL_ATIX_texture_env_combine3, GL_IBM_texture_mirrored_repeat,
GL_INGR_blend_func_separate, GL_MESA_pack_invert,
GL_MESA_ycbcr_texture,
GL_NV_blend_square, GL_NV_point_sprite,
GL_NV_texgen_reflection,
GL_NV_texture_rectangle, GL_SGIS_generate_mipmap,
GL_SGIS_texture_border_clamp, GL_SGIS_texture_edge_clamp,
GL_SGIS_texture_lod, GL_SGIX_depth_texture, GL_SGIX_shadow,
GL_SGIX_shadow_ambient, GL_SUN_multi_draw_arrays
glu version: 1.3
glu extensions:
GLU_EXT_nurbs_tessellator, GLU_EXT_object_space_tess
--
Tom Brinkman Corpus Christi, Texas
Proud to be an American
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