Dear friends: [Using Xandros 2.0 built on Debian]
I installed Xandros 2.0 once again a few days ago. I had to reinstall it several times due to the appearanc e of the infamous Xlib GLX error message. This time, after reinstalling, I monitored carefully the Xlib GLX Extension story with "glxinfo" (as user) in the console. Here is what it looked like when all was well: [EMAIL PROTECTED]:~$ glxinfo name of display: :0.0 display: :0 screen: 0 direct rendering: Yes server glx vendor string: NVIDIA Corporation server glx version string: 1.3 server glx extensions: GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer client glx vendor string: NVIDIA Corporation client glx version string: 1.3 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_SGIX_swap_group, GLX_SGIX_swap_barrier, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_NV_float_buffer GLX extensions: GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_ARB_get_proc_address OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: GeForce2 MX/AGP/SSE2 OpenGL version string: 1.4.0 NVIDIA 44.96 OpenGL extensions: GL_ARB_imaging, GL_ARB_multitexture, GL_ARB_point_parameters, GL_ARB_texture_compression, GL_ARB_texture_cube_map, GL_ARB_texture_env_add, GL_ARB_texture_env_combine, GL_ARB_texture_env_dot3, GL_ARB_texture_mirrored_repeat, GL_ARB_transpose_matrix, GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_window_pos, GL_S3_s3tc, GL_EXT_abgr, GL_EXT_bgra, GL_EXT_blend_color, GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_clip_volume_hint, GL_EXT_compiled_vertex_array, GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_multi_draw_arrays, GL_EXT_packed_pixels, GL_EXT_paletted_texture, GL_EXT_point_parameters, GL_EXT_rescale_normal, GL_EXT_secondary_color, GL_EXT_separate_specular_color, GL_EXT_shared_texture_palette, GL_EXT_stencil_wrap, 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, GL_EXT_texture_lod_bias, GL_EXT_texture_object, GL_EXT_vertex_array, GL_IBM_texture_mirrored_repeat, GL_KTX_buffer_region, GL_NV_blend_square, GL_NV_fence, GL_NV_fog_distance, GL_NV_light_max_exponent, GL_NV_packed_depth_stencil, GL_NV_pixel_data_range, GL_NV_point_sprite, GL_NV_register_combiners, GL_NV_texgen_reflection, GL_NV_texture_env_combine4, GL_NV_texture_rectangle, GL_NV_vertex_array_range, GL_NV_vertex_array_range2, GL_NV_vertex_program, GL_NV_vertex_program1_1, GL_NVX_ycrcb, GL_SGIS_generate_mipmap, GL_SGIS_multitexture, GL_SGIS_texture_lod 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 16 tc 0 16 0 r y . 5 6 5 0 0 16 0 16 16 16 16 0 0 None 0x22 16 dc 0 16 0 r y . 5 6 5 0 0 16 0 16 16 16 16 0 0 None 0x23 16 tc 0 16 0 r . . 5 6 5 0 0 16 0 16 16 16 16 0 0 None 0x24 16 tc 0 16 0 r y . 5 6 5 0 0 0 0 16 16 16 16 0 0 None 0x25 16 tc 0 16 0 r . . 5 6 5 0 0 0 0 16 16 16 16 0 0 None 0x26 16 dc 0 16 0 r . . 5 6 5 0 0 16 0 16 16 16 16 0 0 None 0x27 16 dc 0 16 0 r y . 5 6 5 0 0 0 0 16 16 16 16 0 0 None 0x28 16 dc 0 16 0 r . . 5 6 5 0 0 0 0 16 16 16 16 0 0 None [EMAIL PROTECTED]:~$ I checked this after installing every new program, and everything was OK until just a few minutes ago when I decided to add mike80808's /etc/apt/preferences file from Tips & Tricks (How to use non-Xandros apt sources safely): http://forums.xandros.com/viewtopic.php?t=708&postdays=0&postorder=asc&highlight=preferences&start=15 I rebooted, logged back in and, as always, checked glxinfo in the console and immediately saw the terrible Xlib Glx error message as follows: [EMAIL PROTECTED]:~$ /usr/lib/nvidia bash: /usr/lib/nvidia: is a directory [EMAIL PROTECTED]:~$ cat /usr/lib/nvidia [EMAIL PROTECTED]:~$ glxinfo name of display: :0.0 Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Error: couldn't find RGB GLX visual 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 ---------------------------------------------------------------------- Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". 0x21 16 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". 0x22 16 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". 0x23 16 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". 0x24 16 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". 0x25 16 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". 0x26 16 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". 0x27 16 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". 0x28 16 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None [EMAIL PROTECTED]:~$ When I tried to use apt-get, I got a message about some lock file in /var/lib (I think). I went there and deleted the "lock" file and logged out and logged back in. The GLX error message was still there. I followed the instructions the instructions given by Brian Moshman of our Xandros forum on how to get rid of this GLX error message. Here are his instructions: BEGIN I've read a few posts where people are having the problem that the nvidia glx module is not loaded. I think I have a solution that seems to work for me. Looking at the error message in my XFree log file (/var/log/XFree86.0.log), it was complaining about not being able to load the glx module since the dynamic loader could not load one of the libraries that it needed: Quote: (II) Loading /usr/X11R6/lib/modules/override/libglx.so dlopen: libGLcore.so.1: cannot open shared object file: No such file or directory (EE) Failed to load /usr/X11R6/lib/modules/override/libglx.so (II) UnloadModule: "glx" (EE) Failed to load module "glx" (loader failed, 7) To get a better idea of what the problem was, I ran 'ldd' on the /usr/X11R6/lib/modules/override/libglx.so module to see what was missing. It complained that it couldn't find the libGLcore.so.1, which matched the error above. Since I have a working Xandros system at work with the nvidia drivers, I ran ldd on it and discovered that the missing library is normally found in /usr/lib/nvidia. My /usr/lib/nvidia directory on the working machine had the missing library alright, along with the usual unix convention of symbolic links for the version of the library that is on your system. When I checked my home system with the problem, it had the library in /usr/lib/nvidia, but did not have the necessary symbolic links. Adding a few symbolic links and adding the directory to the ld.so cache seemed to solve the problem. Here's what I did: Make sure that your /etc/X11/XF86Config-4 file has the following line in it: Code: ModulePath "/usr/X11R6/lib/modules/override" You'll need to be root to edit the file. Make sure you add this line to the 'Section "Files"' section of the file. Now open up a command prompt window and first change to the nvidia directory: Code: $ cd /usr/lib/nvidia Now make sure that the following libraries exist in that directory: libGL.so.1.0.4496, libXvMCNVIDIA.so.1.0.4496, libGLcore.so.1.0.4496 Code: $ ls libGLcore.so.1.0.4496 libGL.so.1.0.4496 libXvMCNVIDIA.so.1.0.4496 If you're having the same problem that I had, these three files will be the only files in the directory. Now create the necessary symbolic links: (be careful what you are doing as the root user here...) Code: $ su (it asks you for the root password, enter it here...) # ln -s libGLcore.so.1.0.4496 libGLcore.so.1 # ln -s libGL.so.1.0.4496 libGL.so.1 # ln -s libGL.so.1.0.4496 libGL.so # ln -s libXvMCNVIDIA.so.1.0.4496 libXvMCNVIDIA_dynamic.so.1 Now verify that the links are set up correctly(everything is case-sensitive here, so check carefully): Code: # ls -l lrwxrwxrwx 1 root root 21 2004-01-09 23:16 libGLcore.so.1 -> libGLcore.so.1.0.4496 -rw-r--r-- 1 root root 5031588 2003-11-19 20:07 libGLcore.so.1.0.4496 lrwxrwxrwx 1 root root 17 2003-12-19 23:47 libGL.so -> libGL.so.1.0.4496 lrwxrwxrwx 1 root root 17 2004-01-09 22:43 libGL.so.1 -> libGL.so.1.0.4496 -rw-r--r-- 1 root root 420080 2003-11-19 20:07 libGL.so.1.0.4496 lrwxrwxrwx 1 root root 25 2004-01-09 22:45 libXvMCNVIDIA_dynamic.so.1 -> libXvMCNVIDIA.so.1.0.4496 -rw-r--r-- 1 root root 151856 2003-11-19 20:07 libXvMCNVIDIA.so.1.0.4496 Now you need to edit your /etc/ld.so.conf file as root and add the following line to the file: Code: /usr/lib/nvidia Save the file and then run ldconfig to update the ld.so cache Code: # ldconfig Now type exit to drop back out of superuser mode Code: # exit Now if you restart your X server, hopefully your GLX module will find its dependencies and load correctly. To restart your X server, I first log out and then press [ctrl]-[alt]-[F2] to drop back to a virtual console prompt, log in as root and restart the kdm service: Code: # /etc/init.d/kdm restart The X server should restart and you should be back at the KDE login prompt. Please review everything carefully -- I'm not a linux guru, and there may be some mistakes in the above procedure, so proceed only if you are comfortable messing around with your system configuration. (Void where prohibited by law, offer not valid in all states, yada, yada...) I hope this helps, --Brian END I followed his instructions to the LETTER and was able to replicate his procedures step by step right up to the last step (from Cnt+Alt-F2): (#/etc/init.d/kdm /restart But when this command brought me back into Xandros (with the Nvidia splash screen welcoming as usual), I discovered when I went back to the console that the dreaded error message was still there (see above). One thing: When I went into /usr/lib/nvidia, I found out that all three of the symlinks Brian asked us to create were already there. When I tried to recreate them, I was told that they already exist. Here is my nvidia directory. Other than that, my directory matches his, point by point, byte by byte. [EMAIL PROTECTED]:/usr/lib/nvidia$ ls -la total 5526 drwxr-xr-x 2 root root 312 2004-01-10 06:57 . drwxr-xr-x 100 root root 44400 2004-01-11 13:16 .. lrwxrwxrwx 1 root root 21 2004-01-10 02:09 libGLcore.so.1 -> li bGLcore.so.1.0.4496 -rw-r--r-- 1 root root 5031588 2003-12-06 20:41 libGLcore.so.1.0.449 6 lrwxrwxrwx 1 root root 17 2004-01-10 06:57 libGL.so -> libGL.so .1.0.4496 lrwxrwxrwx 1 root root 17 2004-01-10 02:09 libGL.so.1 -> libGL. so.1.0.4496 -rw-r--r-- 1 root root 420080 2003-12-06 20:41 libGL.so.1.0.4496 lrwxrwxrwx 1 root root 25 2004-01-10 02:09 libXvMCNVIDIA_dynami c.so.1 -> libXvMCNVIDIA.so.1.0.4496 -rw-r--r-- 1 root root 151856 2003-12-06 20:41 libXvMCNVIDIA.so.1.0 .4496 I would so very much like to get rid of this stupid GLX error message. I've already reinstalled twice before on account of it. I refuse to do it again. There must be a solution to this nuisance error message. Can anyone help? I (and I am sure other Nvidia users) would be much obliged. I'll bet it's some minor configuration error that is easily corrected if only we knew what caused it. Thanks so much for listening. Down in the dumps. Benjamin -- Sher's Russian Web http://www.websher.net Benjamin and Anna Sher [EMAIL PROTECTED]
