[pkg-nvidia-devel] Bug#464800: nvidia-glx-legacy-71xx: No GLX: "(EE) GLX is not supported with the Composite extension"

[A. Costa]

Package: nvidia-glx-legacy-71xx
Version: 71.86.01-1
Severity: important


As shipped, 'nvidia-glx-legacy-71xx' is broken; running a GLX app
(e.g. 'glxgears') will fail with errors like:

    Xlib: extension "GLX" missing on display ":0.0".
    
...and '/var/log/Xorg.0.log shows:

    (EE) GLX is not supported with the Composite extension

Adding the following to '/etc/X11/xorg.conf' fixes it:

    Section "Extensions"
            Option  "Composite" "Disable"
    EndSection

...then restart 'X'.  More information here:

	https://bugs.launchpad.net/ubuntu/+source/restricted-manager/+bug/91064
	https://help.ubuntu.com/community/BinaryDriverHowto/Nvidia

...and here:

	zgrep -A 37 -n "app-u" /usr/share/doc/nvidia-kernel-legacy-71xx-source/README.gz | tail -n 38 | less

Yet it isn't documented in 'nvidia-glx-legacy-71xx':

    % grep -i composite `dlocate -L nvidia-glx-legacy-71xx` 2> /dev/null
    Binary file /usr/lib/xorg/modules/drivers/nvidia_drv.so matches
    Binary file /usr/lib/xorg/modules/extensions/libglx.so.71.86.01 matches
    Binary file /usr/lib/libXvMCNVIDIA.so.71.86.01 matches
    Binary file /usr/lib/xorg/modules/extensions/libglx.so matches

Suggested fixes:

    1) An install script can check 'xorg.conf', and if necessary add the
       needed config line. 

    2) Failing that, document the problem, and the above fix.  Perhaps
       with an installer that checks 'xorg.conf' then issues a warning
       if necessary.


Hope this helps...



-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.24-1-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to C)
Shell: /bin/sh linked to /bin/dash

Versions of packages nvidia-glx-legacy-71xx depends on:
ii  libc6              2.7-6                 GNU C Library: Shared libraries
ii  libx11-6           2:1.0.3-7             X11 client-side library
ii  libxext6           1:1.0.3-2             X11 miscellaneous extension librar
ii  nvidia-kernel-lega 71.86.01-1+2.6.24-3   NVIDIA binary kernel module for Li
ii  x11-common         1:7.3+10              X Window System (X.Org) infrastruc
ii  xserver-xorg-core  2:1.4.1~git20080131-1 Xorg X server - core server

nvidia-glx-legacy-71xx recommends no packages.

-- no debconf information