I just installed tuxkart and it's very laggy. How can i test if my 3D acceration is working and find out what is wrong?

type :

glxinfo | grep direct

if it says direct rendering : Yes , then ur 3d is working

what graphic card do u have ? if its nvidia or ati then u need to install their drivers

it says no. How can i turn it on. I'm using the Nvidia drivers.

check this site out to help u with the nvidia drivers as i have ati

http://shilo.is-a-geek.com/slack/nvidia5.html

I have already done everything mentioned on that site. Any other suggestions?

is there anything i have to enable in the xorg.conf to get 3D to work?

sorry for the three consecutive posts. I had 3D acceleration before i updated the Mesa Libraries and Header. Any Ideas?

forgot to post my glxinfo:

name of display: :0.0
display: :0 screen: 0
direct rendering: No
server glx vendor string: Brian Paul
server glx version string: 1.4 Mesa 6.0.1
server glx extensions:
GLX_MESA_copy_sub_buffer, GLX_MESA_pixmap_colormap,
GLX_MESA_release_buffers, GLX_ARB_get_proc_address, GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_SGI_video_sync, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer
client glx vendor string: Brian Paul
client glx version string: 1.4 Mesa 6.0.1
client glx extensions:
GLX_MESA_copy_sub_buffer, GLX_MESA_pixmap_colormap,
GLX_MESA_release_buffers, GLX_ARB_get_proc_address, GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_SGI_video_sync, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer
GLX extensions:
GLX_MESA_copy_sub_buffer, GLX_MESA_pixmap_colormap,
GLX_MESA_release_buffers, GLX_ARB_get_proc_address, GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_SGI_video_sync, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer
OpenGL vendor string: Brian Paul
OpenGL renderer string: Mesa X11
OpenGL version string: 1.5 Mesa 6.0.1
OpenGL extensions:
GL_ARB_depth_texture, GL_ARB_fragment_program, GL_ARB_imaging,
GL_ARB_multisample, GL_ARB_multitexture, GL_ARB_occlusion_query,
GL_ARB_point_parameters, GL_ARB_point_sprite, GL_ARB_shadow,
GL_ARB_shadow_ambient, GL_ARB_texture_border_clamp,
GL_ARB_texture_compression, 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_texture_non_power_of_two,
GL_ARB_transpose_matrix, GL_ARB_vertex_buffer_object,
GL_ARB_vertex_program, 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_compiled_vertex_array, GL_EXT_convolution, GL_EXT_copy_texture,
GL_EXT_depth_bounds_test, GL_EXT_draw_range_elements, GL_EXT_fog_coord,
GL_EXT_histogram, GL_EXT_multi_draw_arrays, GL_EXT_packed_pixels,
GL_EXT_paletted_texture, 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_shared_texture_palette, 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_mirror_clamp,
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_HP_occlusion_test,
GL_IBM_multimode_draw_arrays, GL_IBM_rasterpos_clip,
GL_IBM_texture_mirrored_repeat, GL_INGR_blend_func_separate,
GL_MESA_pack_invert, GL_MESA_program_debug, GL_MESA_resize_buffers,
GL_MESA_ycbcr_texture, GL_MESA_window_pos, GL_NV_blend_square,
GL_NV_fragment_program, GL_NV_light_max_exponent, GL_NV_point_sprite,
GL_NV_texture_rectangle, GL_NV_texgen_reflection, GL_NV_vertex_program,
GL_NV_vertex_program1_1, GL_SGI_color_matrix, GL_SGI_color_table,
GL_SGI_texture_color_table, GL_SGIS_generate_mipmap,
GL_SGIS_pixel_texture, GL_SGIS_texture_border_clamp,
GL_SGIS_texture_edge_clamp, GL_SGIS_texture_lod, GL_SGIX_depth_texture,
GL_SGIX_pixel_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

visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat
----------------------------------------------------------------------
0x21 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 0 0 0 None
0x22 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x23 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x24 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x25 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x26 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x27 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x28 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x29 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x2a 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x2b 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x2c 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x2d 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x2e 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x2f 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x30 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x31 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x32 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x33 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x34 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x35 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x36 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x37 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None
0x38 24 dc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 16 0 0 None

I'd reinstall the nvidia drivers, assuming you used the .run file from their site. Mesa probably reconfigured or overwrote something.

thanks it works.