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Using GLX_SGIX_pbuffer

libGL error: failed to open DRM: Operation not permitted

libGL error: reverting to (slow) indirect rendering

X Error of failed request:  BadMatch (invalid parameter attributes)

  Major opcode of failed request:  144 (GLX)

  Minor opcode of failed request:  5 (X_GLXMakeCurrent)

  Serial number of failed request:  36

  Current serial number in output stream:  36

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: ATI

client glx version string: 1.3

client glx extensions:

    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context,

    GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_ATI_pixel_format_float,

    GLX_ATI_render_texture

GLX extensions:

    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context,

    GLX_ARB_multisample

OpenGL vendor string: ATI Technologies Inc.

OpenGL renderer string: RADEON 9600 XT Generic

OpenGL version string: 2.0.5755 (8.24.8)

OpenGL extensions:

    GL_ARB_multitexture, GL_EXT_texture_env_add, GL_EXT_compiled_vertex_array,

    GL_S3_s3tc, GL_ARB_depth_texture, GL_ARB_fragment_program,

    GL_ARB_fragment_program_shadow, GL_ARB_fragment_shader,

    GL_ARB_multisample, GL_ARB_occlusion_query, GL_ARB_point_parameters,

    GL_ARB_point_sprite, GL_ARB_shader_objects, GL_ARB_shading_language_100,

    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_transpose_matrix,

    GL_ARB_vertex_blend, GL_ARB_vertex_buffer_object, GL_ARB_vertex_program,

    GL_ARB_vertex_shader, GL_ARB_window_pos, GL_ARB_draw_buffers,

    GL_ATI_draw_buffers, GL_ATI_element_array, GL_ATI_envmap_bumpmap,

    GL_ATI_fragment_shader, GL_ATI_map_object_buffer, GL_ATI_separate_stencil,

    GL_ATI_texture_env_combine3, GL_ATI_texture_float,

    GL_ATI_texture_mirror_once, GL_ATI_vertex_array_object,

    GL_ATI_vertex_attrib_array_object, GL_ATI_vertex_streams,

    GL_ATIX_texture_env_combine3, GL_ATIX_texture_env_route,

    GL_ATIX_vertex_shader_output_point_size, GL_EXT_abgr, GL_EXT_bgra,

    GL_EXT_blend_color, GL_EXT_blend_func_separate, GL_EXT_blend_minmax,

    GL_EXT_blend_subtract, GL_EXT_clip_volume_hint,

    GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_framebuffer_object,

    GL_EXT_multi_draw_arrays, GL_EXT_packed_pixels, GL_EXT_point_parameters,

    GL_EXT_rescale_normal, GL_EXT_secondary_color,

    GL_EXT_separate_specular_color, GL_EXT_shadow_funcs, GL_EXT_stencil_wrap,

    GL_EXT_texgen_reflection, GL_EXT_texture3D,

    GL_EXT_texture_compression_s3tc, GL_EXT_texture_cube_map,

    GL_EXT_texture_edge_clamp, GL_EXT_texture_env_combine,

    GL_EXT_texture_env_dot3, GL_EXT_texture_filter_anisotropic,

    GL_EXT_texture_lod_bias, GL_EXT_texture_mirror_clamp,

    GL_EXT_texture_object, GL_EXT_texture_rectangle, GL_EXT_vertex_array,

    GL_EXT_vertex_shader, GL_HP_occlusion_test, GL_NV_blend_square,

    GL_NV_occlusion_query, GL_NV_texgen_reflection, GL_SGI_color_matrix,

    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