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View Full Version : glXMakeContextCurrent fails with BadMatch



Clemens
10-05-2011, 05:37 AM
Hi,

after updating from Fedora 11 to Fedora 15 my software doesnt run any more. I switched to GLX 1.3, but it doesn't work ether.

I send the following sequence:
glXCreateWindow( dpy=0x6a5c00, hwnd = 0x2e00073) = 2e00074
glXCreateNewContext( dpy = 0x6a5c00, GLX_RGBA_TYPE, direct) = 0x7bd0a8
glXMakeContextCurrent( dpy = 0x6a5c00, drawable = 0x2e00074, glrc = 0x7bd0a8)
Error ************************************************** ******************
GeoVis - X11ErrorHandler called :
Display : 0x6a5c00 = :0
Error-text : BadMatch (invalid parameter attributes)
XID : 0x2e0007
X11 - request ( Xproto.h ) : 155
X11 - minor request : 26
************************************************** ******************

I'm wondering about the XID in the X11ErrorHandler ???
What's wrong in my code ?

Thanks for Help
Clemens

_arts_
10-05-2011, 08:16 AM
It seems you don't have the correct prototype for glXCreateNewContext (there's 5 arguments, you only give 3).

Look at here: http://www.opengl.org/sdk/docs/man/xhtml/glXCreateNewContext.xml

Among others, you need to provide a GLXFBConfig without which it will never work.

If you don't need GL 3.x or above, you can freely remain with the old way to do so (glXCreateContext, glXMakeCurrent...)

Clemens
10-05-2011, 11:12 AM
It seems you don't have the correct prototype for glXCreateNewContext (there's 5 arguments, you only give 3).
Look at here: http://www.opengl.org/sdk/docs/man/xhtml/glXCreateNewContext.xml

it is only a trace-log. I used 5 arguments. Read/write are the same and I didn't trace GLXContext



Among others, you need to provide a GLXFBConfig without which it will never work.


My code :
<div class="ubbcode-block"><div class="ubbcode-header">Click to reveal.. <input type="button" class="form-button" value="Show me!" onclick="toggle_spoiler(this, 'Yikes, my eyes!', 'Show me!')" />]<div style="display: none;"> int const attribList[] = { GLX_RENDER_TYPE, GLX_RGBA_BIT
, GLX_RED_SIZE, 8
, GLX_GREEN_SIZE, 8
, GLX_BLUE_SIZE, 8
, GLX_ALPHA_SIZE, 8
, GLX_DEPTH_SIZE, 32
, GLX_X_RENDERABLE, True
, GLX_DOUBLEBUFFER, True
, GLX_STEREO, False
, GLX_X_VISUAL_TYPE, GLX_TRUE_COLOR
, None};
int iElements;
m_os.m_fbChooseConfig = glXChooseFBConfig( m_os.m_dpyDraw, m_os.m_iScreen, attribList, & iElements);[/QUOTE]</div>




If you don't need GL 3.x or above, you can freely remain with the old way to do so (glXCreateContext, glXMakeCurrent...)

It's a pitty :

XCreateSimpleWindow( 0x2e00072, 680, 508) = 0x2e00073
glXQueryVersion = 1.4
glXChooseVisual( display = 0x6a5c00, Screen = 0) = 0x79fb10
glXCreateContext( dpy = 0x6a5c00, XVisualInfo = 0x79fb10, direct) = 0x7bd0a8
glXMakeCurrent( dpy = 0x6a5c00, drawable = 0x2e00073, glrc = 0x7bd0a8)
************************************************** ******************
GeoVis - X11ErrorHandler called :
Display : 0x6a5c00 = :0
Error-text : BadWindow (invalid Window parameter)
XID : 0x2e00073
X11 - request ( Xproto.h ) : 137
X11 - minor request : 4

overlay
10-05-2011, 01:23 PM
Is it only your software?

What happen if you run glxinfo or glxgears? Do they work correctly?

_arts_
10-05-2011, 01:27 PM
Try with a 24 bits depth buffer.

If it still doesn't work and since the old way doesn't seem to work too, provide a report of a glxinfo and a full example.

Clemens
10-06-2011, 12:19 AM
Is it only your software?

I create my own opengl window. The parent is a wxWidgets with gtk - window.


What happen if you run glxinfo or glxgears? Do they work correctly?

[fedora ~]$ glxinfo or glxgears
name of display: :0
X Error of failed request: BadWindow (invalid Window parameter)
Major opcode of failed request: 137 (NV-GLX)
Minor opcode of failed request: 4 ()
Resource id in failed request: 0x2a00003
Serial number of failed request: 32
Current serial number in output stream: 32

I don't understand ? My programs like firefox work....

Clemens
10-06-2011, 01:26 AM
glxinfo solved.

My problem solved as well.

I installed NVIDIA-Linux-x86_64-280.13-no-compat32.run instead of NVIDIA-Linux-x86_64-280.13.run.
<div class="ubbcode-block"><div class="ubbcode-header">Click to reveal.. <input type="button" class="form-button" value="Show me!" onclick="toggle_spoiler(this, 'Yikes, my eyes!', 'Show me!')" />]<div style="display: none;">
[root@fedora ~]# glxinfo
name of display: :0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_texture_from_pixmap, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness, GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGI_swap_control, GLX_EXT_swap_control, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_NV_float_buffer,
GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
GLX_NV_present_video, GLX_NV_copy_image, GLX_NV_multisample_coverage,
GLX_NV_video_capture, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness
GLX version: 1.4
GLX extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_EXT_swap_control, GLX_EXT_texture_from_pixmap, GLX_ARB_create_context,
GLX_ARB_create_context_profile, GLX_EXT_create_context_es2_profile,
GLX_ARB_create_context_robustness, GLX_ARB_multisample,
GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB,
GLX_ARB_get_proc_address
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce 8300/PCI/SSE2
OpenGL version string: 3.3.0 NVIDIA 280.13
OpenGL shading language version string: 3.30 NVIDIA via Cg compiler
OpenGL extensions:
GL_ARB_blend_func_extended, GL_ARB_color_buffer_float,
GL_ARB_compatibility, GL_ARB_copy_buffer, GL_ARB_depth_buffer_float,
GL_ARB_depth_clamp, GL_ARB_depth_texture, GL_ARB_draw_buffers,
GL_ARB_draw_elements_base_vertex, GL_ARB_draw_instanced,
GL_ARB_ES2_compatibility, GL_ARB_explicit_attrib_location,
GL_ARB_fragment_coord_conventions, GL_ARB_fragment_program,
GL_ARB_fragment_program_shadow, GL_ARB_fragment_shader,
GL_ARB_framebuffer_object, GL_ARB_framebuffer_sRGB,
GL_ARB_geometry_shader4, GL_ARB_get_program_binary,
GL_ARB_half_float_pixel, GL_ARB_half_float_vertex, GL_ARB_imaging,
GL_ARB_instanced_arrays, GL_ARB_map_buffer_range, GL_ARB_multisample,
GL_ARB_multitexture, GL_ARB_occlusion_query, GL_ARB_occlusion_query2,
GL_ARB_pixel_buffer_object, GL_ARB_point_parameters, GL_ARB_point_sprite,
GL_ARB_provoking_vertex, GL_ARB_robustness, GL_ARB_sampler_objects,
GL_ARB_seamless_cube_map, GL_ARB_separate_shader_objects,
GL_ARB_shader_bit_encoding, GL_ARB_shader_objects,
GL_ARB_shading_language_100, GL_ARB_shading_language_include,
GL_ARB_shadow, GL_ARB_sync, GL_ARB_texture_border_clamp,
GL_ARB_texture_buffer_object, GL_ARB_texture_compression,
GL_ARB_texture_compression_rgtc, 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_float, GL_ARB_texture_mirrored_repeat,
GL_ARB_texture_multisample, GL_ARB_texture_non_power_of_two,
GL_ARB_texture_rectangle, GL_ARB_texture_rg, GL_ARB_texture_rgb10_a2ui,
GL_ARB_texture_swizzle, GL_ARB_timer_query, GL_ARB_transform_feedback2,
GL_ARB_transpose_matrix, GL_ARB_uniform_buffer_object,
GL_ARB_vertex_array_bgra, GL_ARB_vertex_array_object,
GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_vertex_shader,
GL_ARB_vertex_type_2_10_10_10_rev, GL_ARB_viewport_array,
GL_ARB_window_pos, GL_ATI_draw_buffers, GL_ATI_texture_float,
GL_ATI_texture_mirror_once, GL_S3_s3tc, GL_EXT_texture_env_add,
GL_EXT_abgr, GL_EXT_bgra, GL_EXT_bindable_uniform, GL_EXT_blend_color,
GL_EXT_blend_equation_separate, GL_EXT_blend_func_separate,
GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_compiled_vertex_array,
GL_EXT_Cg_shader, GL_EXT_depth_bounds_test, GL_EXT_direct_state_access,
GL_EXT_draw_buffers2, GL_EXT_draw_instanced, GL_EXT_draw_range_elements,
GL_EXT_fog_coord, GL_EXT_framebuffer_blit, GL_EXT_framebuffer_multisample,
GL_EXTX_framebuffer_mixed_formats, GL_EXT_framebuffer_object,
GL_EXT_framebuffer_sRGB, GL_EXT_geometry_shader4,
GL_EXT_gpu_program_parameters, GL_EXT_gpu_shader4,
GL_EXT_multi_draw_arrays, GL_EXT_packed_depth_stencil,
GL_EXT_packed_float, GL_EXT_packed_pixels, GL_EXT_pixel_buffer_object,
GL_EXT_point_parameters, GL_EXT_provoking_vertex, GL_EXT_rescale_normal,
GL_EXT_secondary_color, GL_EXT_separate_shader_objects,
GL_EXT_separate_specular_color, GL_EXT_shadow_funcs,
GL_EXT_stencil_two_side, GL_EXT_stencil_wrap, GL_EXT_texture3D,
GL_EXT_texture_array, GL_EXT_texture_buffer_object,
GL_EXT_texture_compression_dxt1, GL_EXT_texture_compression_latc,
GL_EXT_texture_compression_rgtc, 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_format_BGRA8888,
GL_EXT_texture_integer, GL_EXT_texture_lod, GL_EXT_texture_lod_bias,
GL_EXT_texture_mirror_clamp, GL_EXT_texture_object,
GL_EXT_texture_shared_exponent, GL_EXT_texture_sRGB,
GL_EXT_texture_swizzle, GL_EXT_texture_type_2_10_10_10_REV,
GL_EXT_timer_query, GL_EXT_transform_feedback2, GL_EXT_vertex_array,
GL_EXT_vertex_array_bgra, GL_EXT_x11_sync_object,
GL_EXT_import_sync_object, GL_IBM_rasterpos_clip,
GL_IBM_texture_mirrored_repeat, GL_KTX_buffer_region, GL_NV_alpha_test,
GL_NV_blend_minmax, GL_NV_blend_square, GL_NV_complex_primitives,
GL_NV_conditional_render, GL_NV_copy_depth_to_color, GL_NV_copy_image,
GL_NV_depth_buffer_float, GL_NV_depth_clamp, GL_NV_explicit_multisample,
GL_NV_fbo_color_attachments, GL_NV_fence, GL_NV_float_buffer,
GL_NV_fog_distance, GL_NV_fragdepth, GL_NV_fragment_program,
GL_NV_fragment_program_option, GL_NV_fragment_program2,
GL_NV_framebuffer_multisample_coverage, GL_NV_geometry_shader4,
GL_NV_gpu_program4, GL_NV_half_float, GL_NV_light_max_exponent,
GL_NV_multisample_coverage, GL_NV_multisample_filter_hint,
GL_NV_occlusion_query, GL_NV_packed_depth_stencil,
GL_NV_parameter_buffer_object, GL_NV_parameter_buffer_object2,
GL_NV_path_rendering, GL_NV_pixel_data_range, GL_NV_point_sprite,
GL_NV_primitive_restart, GL_NV_register_combiners,
GL_NV_register_combiners2, GL_NV_shader_buffer_load,
GL_NV_texgen_reflection, GL_NV_texture_barrier,
GL_NV_texture_compression_vtc, GL_NV_texture_env_combine4,
GL_NV_texture_expand_normal, GL_NV_texture_lod_clamp,
GL_NV_texture_multisample, GL_NV_texture_rectangle, GL_NV_texture_shader,
GL_NV_texture_shader2, GL_NV_texture_shader3, GL_NV_transform_feedback,
GL_NV_transform_feedback2, GL_NV_vdpau_interop, GL_NV_vertex_array_range,
GL_NV_vertex_array_range2, GL_NV_vertex_buffer_unified_memory,
GL_NV_vertex_program, GL_NV_vertex_program1_1, GL_NV_vertex_program2,
GL_NV_vertex_program2_option, GL_NV_vertex_program3,
GL_NVX_conditional_render, GL_NVX_gpu_memory_info, GL_OES_depth24,
GL_OES_depth32, GL_OES_depth_texture, GL_OES_element_index_uint,
GL_OES_fbo_render_mipmap, GL_OES_get_program_binary, GL_OES_mapbuffer,
GL_OES_packed_depth_stencil, GL_OES_rgb8_rgba8,
GL_OES_standard_derivatives, GL_OES_texture_3D, GL_OES_texture_float,
GL_OES_texture_float_linear, GL_OES_texture_half_float,
GL_OES_texture_half_float_linear, GL_OES_texture_npot,
GL_OES_vertex_array_object, GL_OES_vertex_half_float,
GL_SGIS_generate_mipmap, GL_SGIS_texture_lod, GL_SGIX_depth_texture,
GL_SGIX_shadow, GL_SUN_slice_accum

84 GLX Visuals
visual x bf lv rg d st colorbuffer sr ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a F gb bf th cl r g b a ns b eat
----------------------------------------------------------------------------
0x021 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x022 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x024 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x025 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x026 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x027 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x028 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x029 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x02a 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x02b 24 tc 0 32 0 r y . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x02c 24 tc 0 32 0 r y . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x02d 24 tc 0 32 0 r . . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x02e 24 tc 0 32 0 r . . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x02f 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x030 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x031 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x032 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x033 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x034 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x035 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x036 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x037 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x038 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x039 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x03a 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x03b 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x03c 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x03d 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x03e 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x03f 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x040 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x041 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x042 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x043 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x044 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x045 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x046 24 dc 0 32 0 r y . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x047 24 dc 0 32 0 r y . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x048 24 dc 0 32 0 r . . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x049 24 dc 0 32 0 r . . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x04a 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x04b 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x04c 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x04d 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x04e 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x04f 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x050 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x051 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x052 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x053 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x054 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x055 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x056 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x057 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x058 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x059 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x023 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x05a 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x05b 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x05c 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x05d 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x05e 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x05f 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x060 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x061 32 tc 0 32 0 r y . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x062 32 tc 0 32 0 r y . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x063 32 tc 0 32 0 r . . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x064 32 tc 0 32 0 r . . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x065 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x066 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x067 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x068 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x069 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x06a 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x06b 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x06c 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x06d 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x06e 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x06f 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x070 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x071 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x072 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x073 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x074 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon

167 GLXFBConfigs:
visual x bf lv rg d st colorbuffer sr ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a F gb bf th cl r g b a ns b eat
----------------------------------------------------------------------------
0x075 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x076 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x077 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x078 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x079 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x07a 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x07b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x07c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x07d 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x07e 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x07f 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x080 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x081 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x082 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x083 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x084 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x085 24 tc 0 32 0 r y . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x086 24 dc 0 32 0 r y . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x087 24 tc 0 32 0 r y . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x088 24 dc 0 32 0 r y . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x089 24 tc 0 32 0 r . . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x08a 24 dc 0 32 0 r . . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x08b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x08c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x08d 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x08e 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x08f 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x090 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x091 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x092 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x093 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x094 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x095 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x096 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x097 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x098 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x099 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x09a 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x09b 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x09c 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x09d 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x09e 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x09f 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x0a0 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x0a1 24 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0a2 24 dc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0a3 24 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0a4 24 dc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0a5 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x0a6 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x0a7 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x0a8 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x0a9 24 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0aa 24 dc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0ab 24 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0ac 24 dc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0ad 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x0ae 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x0af 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 0 0 None
0x0b0 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 0 0 None
0x0b1 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x0b2 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x0b3 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 0 0 None
0x0b4 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 0 0 None
0x0b5 32 tc 0 32 0 r y . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x0b6 32 tc 0 32 0 r y . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x0b7 32 tc 0 32 0 r . . 8 8 8 0 . s 4 0 0 16 16 16 16 0 0 None
0x0b8 32 tc 0 32 0 r . . 8 8 8 8 . s 4 0 0 16 16 16 16 0 0 None
0x0b9 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x0ba 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x0bb 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x0bc 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x0bd 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 2 1 Ncon
0x0be 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 2 1 Ncon
0x0bf 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 0 16 16 16 16 4 1 Ncon
0x0c0 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 0 16 16 16 16 4 1 Ncon
0x0c1 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x0c2 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x0c3 32 tc 0 32 0 r y . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0c4 32 tc 0 32 0 r y . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0c5 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 2 1 Ncon
0x0c6 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 2 1 Ncon
0x0c7 32 tc 0 32 0 r . . 8 8 8 0 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0c8 32 tc 0 32 0 r . . 8 8 8 8 . s 4 24 8 16 16 16 16 4 1 Ncon
0x0c9 0 sg 0 16 0 r y . 5 6 5 0 . . 4 16 0 16 16 16 16 0 0 None
0x0ca 0 sg 0 16 0 r . . 5 6 5 0 . . 4 16 0 16 16 16 16 0 0 None
0x0cb 0 sg 0 16 0 r y . 5 6 5 0 . . 4 24 0 16 16 16 16 0 0 None
0x0cc 0 sg 0 16 0 r . . 5 6 5 0 . . 4 24 0 16 16 16 16 0 0 None
0x0cd 0 sg 0 16 0 r y . 5 6 5 0 . . 4 24 8 16 16 16 16 0 0 None
0x0ce 0 sg 0 16 0 r . . 5 6 5 0 . . 4 24 8 16 16 16 16 0 0 None
0x0cf 0 sg 0 16 0 r y . 5 6 5 0 . . 4 0 0 16 16 16 16 0 0 None
0x0d0 0 sg 0 16 0 r . . 5 6 5 0 . . 4 0 0 16 16 16 16 0 0 None
0x0d1 0 sg 0 0 0 r . . 0 0 0 0 . . 4 16 0 16 16 16 16 0 0 None
0x0d2 0 sg 0 0 0 r . . 0 0 0 0 . . 4 24 0 16 16 16 16 0 0 None
0x0d3 0 sg 0 0 0 r . . 0 0 0 0 . . 4 24 8 16 16 16 16 0 0 None
0x0d4 0 sg 0 32 0 r . . 16 16 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x0d5 0 sg 0 32 0 . . 16 16 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x0d6 0 sg 0 32 0 r y . 16 16 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x0d7 0 sg 0 32 0 y . 16 16 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x0d8 0 sg 0 32 0 r . . 32 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x0d9 0 sg 0 32 0 . . 32 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x0da 0 sg 0 32 0 r y . 32 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x0db 0 sg 0 32 0 y . 32 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x0dc 0 sg 0 64 0 r . . 16 16 16 16 f . 4 0 0 16 16 16 16 0 0 None
0x0dd 0 sg 0 64 0 . . 16 16 16 16 f . 4 0 0 16 16 16 16 0 0 None
0x0de 0 sg 0 64 0 r y . 16 16 16 16 f . 4 0 0 16 16 16 16 0 0 None
0x0df 0 sg 0 64 0 y . 16 16 16 16 f . 4 0 0 16 16 16 16 0 0 None
0x0e0 0 sg 0 128 0 r . . 32 32 32 32 f . 4 0 0 16 16 16 16 0 0 None
0x0e1 0 sg 0 128 0 . . 32 32 32 32 f . 4 0 0 16 16 16 16 0 0 None
0x0e2 0 sg 0 128 0 r y . 32 32 32 32 f . 4 0 0 16 16 16 16 0 0 None
0x0e3 0 sg 0 128 0 y . 32 32 32 32 f . 4 0 0 16 16 16 16 0 0 None
0x0e4 0 sg 0 32 0 r . . 16 16 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x0e5 0 sg 0 32 0 . . 16 16 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x0e6 0 sg 0 32 0 r y . 16 16 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x0e7 0 sg 0 32 0 y . 16 16 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x0e8 0 sg 0 32 0 r . . 16 16 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x0e9 0 sg 0 32 0 . . 16 16 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x0ea 0 sg 0 32 0 r y . 16 16 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x0eb 0 sg 0 32 0 y . 16 16 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x0ec 0 sg 0 32 0 r . . 32 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x0ed 0 sg 0 32 0 . . 32 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x0ee 0 sg 0 32 0 r y . 32 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x0ef 0 sg 0 32 0 y . 32 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x0f0 0 sg 0 32 0 r . . 32 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x0f1 0 sg 0 32 0 . . 32 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x0f2 0 sg 0 32 0 r y . 32 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x0f3 0 sg 0 32 0 y . 32 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x0f4 0 sg 0 64 0 r . . 16 16 16 16 f . 4 24 0 16 16 16 16 0 0 None
0x0f5 0 sg 0 64 0 . . 16 16 16 16 f . 4 24 0 16 16 16 16 0 0 None
0x0f6 0 sg 0 64 0 r y . 16 16 16 16 f . 4 24 0 16 16 16 16 0 0 None
0x0f7 0 sg 0 64 0 y . 16 16 16 16 f . 4 24 0 16 16 16 16 0 0 None
0x0f8 0 sg 0 64 0 r . . 16 16 16 16 f . 4 24 8 16 16 16 16 0 0 None
0x0f9 0 sg 0 64 0 . . 16 16 16 16 f . 4 24 8 16 16 16 16 0 0 None
0x0fa 0 sg 0 64 0 r y . 16 16 16 16 f . 4 24 8 16 16 16 16 0 0 None
0x0fb 0 sg 0 64 0 y . 16 16 16 16 f . 4 24 8 16 16 16 16 0 0 None
0x0fc 0 sg 0 128 0 r . . 32 32 32 32 f . 4 24 0 16 16 16 16 0 0 None
0x0fd 0 sg 0 128 0 . . 32 32 32 32 f . 4 24 0 16 16 16 16 0 0 None
0x0fe 0 sg 0 128 0 r y . 32 32 32 32 f . 4 24 0 16 16 16 16 0 0 None
0x0ff 0 sg 0 128 0 y . 32 32 32 32 f . 4 24 0 16 16 16 16 0 0 None
0x100 0 sg 0 128 0 r . . 32 32 32 32 f . 4 24 8 16 16 16 16 0 0 None
0x101 0 sg 0 128 0 . . 32 32 32 32 f . 4 24 8 16 16 16 16 0 0 None
0x102 0 sg 0 128 0 r y . 32 32 32 32 f . 4 24 8 16 16 16 16 0 0 None
0x103 0 sg 0 128 0 y . 32 32 32 32 f . 4 24 8 16 16 16 16 0 0 None
0x104 0 sg 0 16 0 r . . 16 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x105 0 sg 0 16 0 . . 16 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x106 0 sg 0 16 0 r y . 16 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x107 0 sg 0 16 0 y . 16 0 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x108 0 sg 0 64 0 r . . 32 32 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x109 0 sg 0 64 0 . . 32 32 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x10a 0 sg 0 64 0 r y . 32 32 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x10b 0 sg 0 64 0 y . 32 32 0 0 f . 4 0 0 16 16 16 16 0 0 None
0x10c 0 sg 0 16 0 r . . 16 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x10d 0 sg 0 16 0 . . 16 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x10e 0 sg 0 16 0 r y . 16 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x10f 0 sg 0 16 0 y . 16 0 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x110 0 sg 0 16 0 r . . 16 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x111 0 sg 0 16 0 . . 16 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x112 0 sg 0 16 0 r y . 16 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x113 0 sg 0 16 0 y . 16 0 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x114 0 sg 0 64 0 r . . 32 32 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x115 0 sg 0 64 0 . . 32 32 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x116 0 sg 0 64 0 r y . 32 32 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x117 0 sg 0 64 0 y . 32 32 0 0 f . 4 24 0 16 16 16 16 0 0 None
0x118 0 sg 0 64 0 r . . 32 32 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x119 0 sg 0 64 0 . . 32 32 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x11a 0 sg 0 64 0 r y . 32 32 0 0 f . 4 24 8 16 16 16 16 0 0 None
0x11b 0 sg 0 64 0 y . 32 32 0 0 f . 4 24 8 16 16 16 16 0 0 None
[/QUOTE]</div>

thanks for your help. glxinfo leads me to the problem :-)