Xlib: extension "GLX" missing on display ":0.0".

[Michael Wigle]

Binary package hint: compiz

Description: Ubuntu 9.04
Release: 9.04
compiz:
  Installed: 1:0.8.2-0ubuntu8
  Candidate: 1:0.8.2-0ubuntu8.1
  Version table:
     1:0.8.2-0ubuntu8.1 0
        500 http://us.archive.ubuntu.com jaunty-updates/main Packages
 *** 1:0.8.2-0ubuntu8 0
        500 http://us.archive.ubuntu.com jaunty/main Packages
        100 /var/lib/dpkg/status
xserver-xorg-video-intel:
  Installed: 2:2.6.3-0ubuntu9.3
  Candidate: 2:2.6.3-0ubuntu9.3
  Version table:
 *** 2:2.6.3-0ubuntu9.3 0
        500 http://us.archive.ubuntu.com jaunty-updates/main Packages
        100 /var/lib/dpkg/status
     2:2.6.3-0ubuntu9 0
        500 http://us.archive.ubuntu.com jaunty/main Packages

Video card: Mobile GM965/GL960 Integrated Graphics Controller

Compiz desktop effects don't work and 3d graphics in general don't seem to work well if at all.

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
MachineType: Dell Inc. Inspiron 1525
Package: compiz 1:0.8.2-0ubuntu8
PackageArchitecture: all
ProcCmdLine: root=UUID=9bbd530d-6f19-4933-bd59-8663c24ced38 ro quiet splash
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-11.42-generic
SourcePackage: compiz

[Michael Wigle (michaelwigle)]

I'm a complete dork. Somehow I missed the fact that libgl1-mesa-dri wasn't installed. Once I installed that it worked fine. Does this need to be linked as a dependency for libgl1-mesa-glx?

[Travis Watkins (amaranth)]

Based out the 'Xlib: extension "GLX" missing on display ":0.0".' output in your .xsession-error files this is either a problem with your driver or a bad configuration in your /etc/X11/xorg.conf file.

[Travis Watkins (amaranth)]

Your Xorg.0.log says this: (II) GLX: no usable GL providers found for screen 0

That message appears because the i965_dri.so file is missing from your system. Can you make sure the libgl1-mesa-dri package is installed and if so reinstall it?

[Travis Watkins (amaranth)]

Oops, looks like you fixed the problem while I was digging into your log files. :)

That package is not strictly required to be installed so it probably shouldn't be a dependency but it should have gotten installed somehow.