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Thread: nvidia xorg woes couldn't find RGB GLX visual or fbconfig

  1. #1
    Join Date
    Aug 2009
    Beans
    1

    Unhappy nvidia xorg woes couldn't find RGB GLX visual or fbconfig

    I have recently installed NVIDIA driver (185.18.36) package in my laptop sony vaio VGN-Z12GN (hybrid graphics) on jaunty. The laptop has both intel and nvidia graphics cards as follows

    lspci |grep VGA shows:
    00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
    01:00.0 VGA compatible controller: nVidia Corporation GeForce 9300M GS (rev a1)

    Jaunty Linux Kernel is 2.6.28-15-generic

    After nvidia driver installation X works fine.
    "lsmod |grep nvidia" shows
    nvidia 9594888 2
    agpgart 42696 3 intel_agp,nvidia

    But I cannot work with some applications in X like pymol

    $pymol
    Xlib: extension "GLX" missing on display ":0.0".
    freeglut (pymol): OpenGL GLX extension not supported by display ':0.0'
    PyMOL: abrupt program termination.

    glxinfo says
    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".
    Xlib: extension "GLX" missing on display ":0.0".
    Xlib: extension "GLX" missing on display ":0.0".
    Error: couldn't find RGB GLX visual or fbconfig

    Xlib: extension "GLX" missing on 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".
    Xlib: extension "GLX" missing on display ":0.0".
    2 GLXFBConfigs:
    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
    ----------------------------------------------------------------------
    Segmentation fault



    $dmesg
    [ 1374.175812] glxinfo[10991]: segfault at 0 ip 0804ad46 sp bf9fe330 error 4 in glxinfo[8048000+5000]
    [ 1640.623988] glxinfo[11679]: segfault at 0 ip 0804ad46 sp bf8fea30 error 4 in glxinfo[8048000+5000]
    [ 1729.562879] glxinfo[12239]: segfault at 0 ip 0804ad46 sp bff11030 error 4 in glxinfo[8048000+5000]
    [ 2075.227586] glxinfo[13118]: segfault at 0 ip 0804ad46 sp bfd51e70 error 4 in glxinfo[8048000+5000]
    [ 2740.164832] glxinfo[15393]: segfault at 0 ip 0804ad46 sp bf850170 error 4 in glxinfo[8048000+5000]

    I see that normally libglx.so is installed by xserver-xorg-core package like this
    /usr/lib/xorg/modules/extensions/libglx.so

    but nvidia driver installation sets up an alternate libglx like this
    lrwxrwxrwx 1 root root 19 2009-08-31 12:28 libglx.so -> libglx.so.185.18.36
    -rwxr-xr-x 1 root root 1.3M 2009-08-31 12:28 libglx.so.185.18.36
    in the same path /usr/lib/xorg/modules/extensions
    also nvidia driver replaces /usr/lib/libGL.so to its driver version of libGL.so like this
    lrwxrwxrwx 1 root root 10 2009-08-31 12:28 libGL.so -> libGL.so.1
    lrwxrwxrwx 1 root root 18 2009-08-31 12:28 libGL.so.1 -> libGL.so.185.18.36
    -rwxr-xr-x 1 root root 618176 2009-08-31 12:28 libGL.so.185.18.36

    same with libGLcore.so.1 also like this

    lrwxrwxrwx 1 root root 22 2009-08-31 12:28 libGLcore.so.1 -> libGLcore.so.185.18.36
    -rwxr-xr-x 1 root root 16118572 2009-08-31 12:28 libGLcore.so.185.18.36

    so whats wrong with glx extension ? does it mean incompatibility with libglx.so library from nvidia ? could someone suggest a workaround ?

    pls find the xorg.conf attached.

    regards,
    Krishnamo
    Attached Files Attached Files
    Last edited by krishnamo; August 31st, 2009 at 08:58 AM.

  2. #2
    Join Date
    Aug 2009
    Location
    South Africa
    Beans
    9
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: nvidia xorg woes couldn't find RGB GLX visual or fbconfig

    Just thought I'd let you know we're working on the problem here. I really REALLY want to sort it out, so hopefully when I'm done, that will be the link to the solution

  3. #3
    Join Date
    Dec 2006
    Beans
    24

    Re: nvidia xorg woes couldn't find RGB GLX visual or fbconfig


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