I've lost direct rendering!

Discussion in 'Linux, BSD and Other OS's' started by megamaced, Jul 15, 2006.

  1. megamaced

    megamaced Geek Geek Geek!

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    Something's a miss here. :confused:

    As posted in another thread, my screensavers have stopped working automatically. I noticed that when I clicked 'Test' in the KDE screensaver control panel, the screensaver would run REALLY slow.

    Anyways, i've just run the glxgears test and the animation barely moved! So I entered the command glxinfo and noticed that Direct Rendering had been turned off! I also noticed a few other bits that had changed.

    Below is the output of glxinfo taken from my old Google Earth thread (when everything was working OK - except Google Earth ;) )

    Code:
    name of display: :0.0
    display: :0  screen: 0
    direct rendering: Yes
    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_hyperpipe, GLX_SGIX_swap_barrier,
        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_EXT_texture_from_pixmap
    GLX version: 1.2
    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_OML_swap_method, GLX_SGI_make_current_read, GLX_SGIS_multisample,
        GLX_SGIX_fbconfig
    OpenGL vendor string: Tungsten Graphics, Inc
    OpenGL renderer string: Mesa DRI Intel(R) 845G 20050225
    OpenGL version string: 1.3 Mesa 6.4.1
    OpenGL extensions:
        GL_ARB_imaging, GL_ARB_multisample, GL_ARB_multitexture,
        GL_ARB_point_parameters, 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_rectangle,
        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_equation_separate,
        GL_EXT_blend_func_separate, GL_EXT_blend_minmax, GL_EXT_blend_subtract,
        GL_EXT_clip_volume_hint, GL_EXT_cull_vertex, GL_EXT_compiled_vertex_array,
        GL_EXT_convolution, GL_EXT_copy_texture, GL_EXT_draw_range_elements,
        GL_EXT_fog_coord, GL_EXT_histogram, 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_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_filter_anisotropic,
        GL_EXT_texture_lod_bias, GL_EXT_texture_object, GL_EXT_texture_rectangle,
        GL_EXT_vertex_array, GL_3DFX_texture_compression_FXT1,
        GL_APPLE_client_storage, GL_APPLE_packed_pixels,
        GL_ATI_blend_equation_separate, GL_IBM_rasterpos_clip,
        GL_IBM_texture_mirrored_repeat, GL_INGR_blend_func_separate,
        GL_MESA_pack_invert, GL_MESA_ycbcr_texture, GL_MESA_window_pos,
        GL_NV_blend_square, GL_NV_light_max_exponent, GL_NV_texture_rectangle,
        GL_NV_texgen_reflection, GL_NV_vertex_program, GL_NV_vertex_program1_1,
        GL_OES_read_format, GL_SGI_color_matrix, GL_SGI_color_table,
        GL_SGIS_generate_mipmap, GL_SGIS_texture_border_clamp,
        GL_SGIS_texture_edge_clamp, GL_SGIS_texture_lod, 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
    ----------------------------------------------------------------------
    0x23 24 tc  0 32  0 r  y  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
    0x24 24 tc  0 32  0 r  .  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
    0x25 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
    0x26 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
    0x27 24 tc  0 32  0 r  y  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
    0x28 24 tc  0 32  0 r  .  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
    0x29 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
    0x2a 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
    0x2b 24 dc  0 32  0 r  y  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
    0x2c 24 dc  0 32  0 r  .  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
    0x2d 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
    0x2e 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
    0x2f 24 dc  0 32  0 r  y  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
    0x30 24 dc  0 32  0 r  .  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
    0x31 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
    0x32 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
    And this is what it looks like now:

    Code:
    name of display: :0.0
    display: :0  screen: 0
    [COLOR="Red"]direct rendering: No[/COLOR]
    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_hyperpipe, GLX_SGIX_swap_barrier,
        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_EXT_texture_from_pixmap
    GLX version: 1.2
    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
    [COLOR="#ff0000"]OpenGL vendor string: Mesa project: www.mesa3d.org
    OpenGL renderer string: Mesa GLX Indirect
    OpenGL version string: 1.2 (1.5 Mesa 6.4.1)[/COLOR]
    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_texture_rectangle, 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_HP_occlusion_test, 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
    
       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
    ----------------------------------------------------------------------
    0x23 24 tc  0 24  0 r  y  .  8  8  8  0  0 16  0  0  0  0  0  0 0 None
    0x24 24 tc  0 24  0 r  y  .  8  8  8  0  0 16  8 16 16 16  0  0 0 None
    0x25 24 tc  0 32  0 r  y  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
    0x26 24 tc  0 32  0 r  .  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
    0x27 24 dc  0 24  0 r  y  .  8  8  8  0  0 16  0  0  0  0  0  0 0 None
    0x28 24 dc  0 24  0 r  y  .  8  8  8  0  0 16  8 16 16 16  0  0 0 None
    0x29 24 dc  0 32  0 r  y  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
    0x2a 24 dc  0 32  0 r  .  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
    I've highlighted in red all the major changes. But comparing the two, i've noticed that half of the GLX extensions are missing!

    Can someone explain to me what has happened, and how i get it back the way it once was?
     
  2. Anti-Trend

    Anti-Trend Nonconformist Geek

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    Reinstall your NVidia drivers. Probably a major component of your X server was changed, and as a result the drivers need to be recompiled. One of the pitfalls we have to deal with if we want to use current proprietary drivers, I'm afraid.
     
  3. megamaced

    megamaced Geek Geek Geek!

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    No, no, the nVidia card is on my Ubuntu box. I am having this problem on my Kubuntu box, which uses the horrible integrated Intel 845G Extreme Graphics!

    The Intel card was set up automatically with Direct Rendering when I installed Kubuntu. How would I go about reinstalling the drivers for the Intel chipset?
     
  4. megamaced

    megamaced Geek Geek Geek!

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    Oh, i'm the man :)

    I noticed that my xorg.conf file had been changed dramatically. Luckily for me, there was a backup of it (I don't remember creating one) so I just renamed the backup and restarted X. And it worked!
     
  5. Anti-Trend

    Anti-Trend Nonconformist Geek

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    Well, that would have been useful information up front. :p
     
  6. megamaced

    megamaced Geek Geek Geek!

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    Haha, and I guess you were too quick there to knock nVidia's drivers ;)
     
  7. megamaced

    megamaced Geek Geek Geek!

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    I don't :swear: believe it! My screensavers are coming on again, automatically! :)

    Looks like I killed two birds with one stone
     

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