XGL ATI Problem

[glj12]

I have always had XGL working properly on this box, until today. All I did was hit the restart button by mistake while it was booting up, and now it decided to spazz out on me. Now upon login, XGL does not load. Each time I type compiz --replace, all of the bars around windows disappear (as in, I cannot drag windows, they remain static). Here is a bit of information for when I type certain things...

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glj12@localhost ~ $ compiz
compiz (core) - Error: Screen 0 on display ":0.0" already has a window manager; try using the --replace option to replace the current window manager.
compiz (core) - Fatal: No manageable screens found on display :0.0


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localhost glj12 # glxinfo
name of display: :0.0
Xlib:  extension "XFree86-DRI" missing on 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_EXT_texture_from_pixmap, 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_SGI_video_sync, GLX_ARB_multisample,
    GLX_ATI_pixel_format_float, GLX_ATI_render_texture
GLX version: 1.2
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 X1800 Series
OpenGL version string: 1.2 (2.0.6474 (8.38.6))
OpenGL extensions:
    GL_ARB_multitexture, GL_ARB_texture_border_clamp, GL_ARB_texture_cube_map,
    GL_ARB_texture_env_add, GL_ARB_texture_env_combine,
    GL_ARB_texture_env_dot3, GL_ARB_transpose_matrix, GL_EXT_abgr,
    GL_EXT_blend_color, GL_EXT_blend_minmax, GL_EXT_blend_subtract,
    GL_EXT_texture_env_add, GL_EXT_texture_env_combine,
    GL_EXT_texture_env_dot3, GL_EXT_texture_lod_bias

   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
----------------------------------------------------------------------
0x2c 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x2d 24 tc  0 32  0 r  .  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
0x2e 32 tc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 Ncon
0x2f 32 tc  0 32  0 r  .  .  8  8  8  8  0  0  0  0  0  0  0  0 0 Ncon


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glj12@localhost ~ $ fglrxinfo
Xlib:  extension "XFree86-DRI" missing on display ":0.0".
display: :0.0  screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: Radeon X1800 Series
OpenGL version string: 1.2 (2.0.6474 (8.38.6))


When I run glxgears, I still get good FPS, but an error as well.

Code: Select all

glj12@localhost ~ $ glxgears
Xlib:  extension "XFree86-DRI" missing on display ":0.0".
17908 frames in 5.0 seconds = 3559.600 FPS

Any ideas in terms of resolving this problem, and how to avoid it again, other than not hitting the "reset" button on the computer when it is in the initial boot sequence?

Thanks you very much in advance!
glj12

[joost]

I'm not 100% sure, but Ati drivers are supposed to work with AIGLX now. Try to use that instead of XGL as XGL is depreciated.

[Fitzcarraldo]

The message Xlib: extension "XFree86-DRI" missing on display ":0.0". does not necessarily mean that XGL is not working. For example, I had Beryl and, later, Compiz Fusion working successfully under XGL and still had that message, as can be seen below in the output that I saved at the time (see Item 1 below). All the message means is that direct rendering is not working but indirect rendering via XGL is being used instead. Now I'm using AIGLX the messages are different, as shown in the second code box below (see Item 2 below).

1) THIS WAS THE SITUATION WHEN I WAS USING XGL SUCCESSFULLY WITH BERYL OR COMPIZ FUSION:

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# eselect opengl show
ati
# cat /etc/sabayon-release
Sabayon Linux x86-64 3.4
# glxinfo
name of display: :0.0
Xlib: extension "XFree86-DRI" missing on 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_EXT_texture_from_pixmap, 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_SGI_video_sync, GLX_ARB_multisample,
 GLX_ATI_pixel_format_float, GLX_ATI_render_texture
GLX version: 1.2
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: ATI Mobility Radeon X1600
OpenGL version string: 1.2 (2.0.6458 (8.36.5))
OpenGL extensions:
 GL_ARB_multitexture, GL_ARB_texture_border_clamp, GL_ARB_texture_cube_map,
 GL_ARB_texture_env_add, GL_ARB_texture_env_combine,
 GL_ARB_texture_env_dot3, GL_ARB_transpose_matrix, GL_EXT_abgr,
 GL_EXT_blend_color, GL_EXT_blend_minmax, GL_EXT_blend_subtract,
 GL_EXT_texture_env_add, GL_EXT_texture_env_combine,
 GL_EXT_texture_env_dot3, GL_EXT_texture_lod_bias
 
 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
----------------------------------------------------------------------
0x2c 24 tc 0 32 0 r y . 8 8 8 8 0 24 8 0 0 0 0 0 0 None
0x2d 24 tc 0 32 0 r . . 8 8 8 8 0 0 0 0 0 0 0 0 0 None
0x2e 32 tc 0 32 0 r y . 8 8 8 8 0 24 8 0 0 0 0 0 0 Ncon
0x2f 32 tc 0 32 0 r . . 8 8 8 8 0 0 0 0 0 0 0 0 0 Ncon
# exit
exit
$ fglrxinfo
Xlib: extension "XFree86-DRI" missing on display ":0.0".
display: :0.0 screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI Mobility Radeon X1600
OpenGL version string: 1.2 (2.0.6458 (8.36.5))

$

1) THIS IS THE SITUATION NOW I AM USING AIGLX SUCCESSFULLY WITH COMPIZ FUSION:

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# eselect opengl show
ati
# cat /etc/sabayon-release
Sabayon Linux x86-64 3.4
# glxinfo
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_import_context, GLX_EXT_texture_from_pixmap,
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_OML_swap_method,
    GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_visual_select_group
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_copy_sub_buffer, 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_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_visual_select_group
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI Mobility Radeon X1600
OpenGL version string: 2.0.6958 Release
OpenGL extensions:
    GL_ARB_depth_texture, GL_ARB_draw_buffers, GL_ARB_fragment_program,
    GL_ARB_fragment_shader, GL_ARB_multisample, GL_ARB_multitexture,
    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_float, GL_ARB_texture_mirrored_repeat,
    GL_ARB_texture_rectangle, GL_ARB_transpose_matrix,
    GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_vertex_shader,
    GL_ARB_window_pos, GL_ATI_draw_buffers, GL_ATI_envmap_bumpmap,
    GL_ATI_fragment_shader, GL_ATI_meminfo, GL_ATI_separate_stencil,
    GL_ATI_texture_compression_3dc, GL_ATI_texture_env_combine3,
    GL_ATI_texture_float, GL_EXT_bgra, GL_EXT_blend_color,
    GL_EXT_blend_func_separate, GL_EXT_blend_minmax, GL_EXT_blend_subtract,
    GL_EXT_compiled_vertex_array, GL_EXT_copy_texture,
    GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_framebuffer_object,
    GL_EXT_framebuffer_object, GL_EXT_gpu_program_parameters,
    GL_EXT_multi_draw_arrays, GL_EXT_packed_depth_stencil,
    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_subtexture,
    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_add,
    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_texture_sRGB, GL_EXT_vertex_array,
    GL_KTX_buffer_region, GL_NV_blend_square, GL_NV_texgen_reflection,
    GL_SGIS_generate_mipmap, GL_SGIS_texture_edge_clamp, GL_SGIS_texture_lod,
    GL_WIN_swap_hint, WGL_EXT_swap_control

   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 24  8 16 16 16 16  0 0 None
0x24 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x25 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x26 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x27 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x28 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x29 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x2a 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x2b 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x2c 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x2d 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x2e 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x2f 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x30 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x31 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x32 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x33 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x34 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x35 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x36 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x37 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x38 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x39 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x3a 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x3b 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x3c 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x3d 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x3e 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x3f 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x40 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x41 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x42 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x43 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x44 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x45 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x46 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x47 24 tc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x48 24 tc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x49 24 tc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x4a 24 tc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x4b 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x4c 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x4d 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x4e 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x4f 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x50 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x51 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x52 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x53 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x54 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x55 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x56 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x57 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x58 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x59 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x5a 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x5b 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x5c 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x5d 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x5e 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x5f 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x60 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x61 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x62 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x63 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x64 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x65 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x66 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x67 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x68 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x69 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x6a 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x6b 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x6c 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 None
0x6d 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x6e 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 None
0x6f 24 dc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x70 24 dc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x71 24 dc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x72 24 dc  1  0  0 c  .  .  0  0  0  0  0  0  0  0  0  0  0  0 0 None
0x88 32 tc  0 32  0 r  .  .  8  8  8  8  0  0  0  0  0  0  0  0 0 Ncon
# exit
exit
$ fglrxinfo
display: :0.0  screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI Mobility Radeon X1600
OpenGL version string: 2.0.6958 Release

$

[glj12]

Two things; neither post helped.

First comment: Nope, ATI does not support AIGLX, only XGL, you are thinking of NVidia.

Second comment: That's fine and all, but notice that you have direct rendering = yes, whilst mine does not. I believe that this is one of the many problems with mine.

Anyone care to give an resolution? I think that this is quite odd that my XGL decides not to function dies just because I hit the reset button during early boot sequence; quite touchy, no?

Also, DRI is angry:

Code: Select all

localhost glj12 # accel-manager
XGL is running
DRI not ok
XGL is running
OpenGL acceleration is available.
something set currentStatus to  0
DRI not ok
XGL is running
fglrx driver is running, AIGLX is NOT available
DRI not ok
XGL is running
DRI not ok
XGL is running


[joost]

You are wrong, you should use AIGLX now.

Code: Select all

emerge ati-drivers && ln -s /usr/lib/opengl/ati/lib/libGL.so.1 /usr/lib/libGL.so.1 && emerge desktop-acceleration-helpers

The symlink is needed due some bug in the ATI driver.
Also have a look here.

viewtopic.php?f=60&t=11126

[glj12]

You are wrong, you should use AIGLX now.

Code: Select all

emerge ati-drivers && ln -s /usr/lib/opengl/ati/lib/libGL.so.1 /usr/lib/libGL.so.1 && emerge desktop-acceleration-helpers

The symlink is needed due some bug in the ATI driver.
Also have a look here.

viewtopic.php?f=60&t=11126

I may whenever I am feeling saucy. Regardless, I somehow got it to work with XGL roughly 5 minutes ago - though, I will keep that command in mind for later use.

My emerge has been retarded lately and doesn't /feel/ like installing anything properly, I guess I will take care of that at a later time.

Many thanks,
glj12

[Fitzcarraldo]

First comment: Nope, ATI does not support AIGLX, only XGL, you are thinking of NVidia.

If you read my earlier post carefully, you'll see that, apart from my sig. mentioning I have an ATI GPU, the result of eselect opengl show is "ati". AIGLX has worked with ATI since version 8.42.3-r10:

viewtopic.php?f=56&t=11356&p=65545&hilit=ati+driver+xgl+aiglx#p65545

Second comment: That's fine and all, but notice that you have direct rendering = yes, whilst mine does not. I believe that this is one of the many problems with mine.

If you read my earlier post carefully, you'll see that, in the case where I was using XGL with my ATI GPU (Item 1 in my earlier post), direct rendering was not working (direct rendering: No)

As for your comment that "DRI is angry", DRI is not necessary for XGL and Compiz Fusion to work with an ATI GPU. Apart from the code quoted in my earlier post, see also the text under the fourth bullet point on the following Web page:

http://en.opensuse.org/Xgl

Direct rendering is active if running glxinfo|grep direct on top of Xorg (not Xgl!) shows you "Yes". On top of Xgl this will always show you "No". Unfortunately, for Xorg having direct rendering is a synonym for having accelerated graphics, and it is more difficult to detect whether hardware acceleration is available than it is to detect direct rendering.

If you have managed to get Compiz Fusion working again with XGL then by all means stick with what you have got. But, as joost stated, XGL is now deprecated under SL and is no longer supported for ATI. In fact, if you were to emerge the latest ATI driver and desktop acceleration helpers you would see a message to that effect (not to mention that the latest version of Acceleration Manager does not have XGL as an option any more). If, in future, you want to move to AIGLX then the following post is a good guide (it worked for SL x86-64 3.4f, even if the post is in a thread relating to PE 1.1):

viewtopic.php?f=60&t=11126&start=0#p64319