no glx with radeon 482.

[Guest]

there have been a lot of posts all over ubuntu/kubuntu forums about problems that show the following:

:~$ glxinfo
name of display: :0
Xlib: extension "GLX" missing on display ":0".
Xlib: extension "GLX" missing on display ":0".
Xlib: extension "GLX" missing on display ":0".
Xlib: extension "GLX" missing on display ":0".
Xlib: extension "GLX" missing on display ":0".
Error: couldn't find RGB GLX visual or fbconfig

In my case none of the proposed solutions seem to solve it, so let me give the indicators and then discuss. First of all, the only error in xorg.0.log is:

...
(EE) Failed to load module "fglrx" (module does not exist, 0)
...
(EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)
...

This is in spite of the fact that I did all the steps to purge fglrx and reinstall the open source ati drivers to make sure they are dominant.

The nvidia reference, even though I've seen this noted in many forum/launchpad posts, no one has ever seemed to think it was an issue. I did apt-get purge nvidia-common, but cancelled out b/c:

$ sudo apt-get purge nvidia-common
Reading package lists... Done
Building dependency tree    
Reading state information... Done
The following packages were automatically installed and are no longer required:
 xserver-xorg-video-r128-dbg xserver-xorg-video-mach64-dbg
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
 edubuntu-desktop-kde* kubuntu-desktop* nvidia-common*
0 upgraded, 0 newly installed, 3 to remove and 0 not upgraded.
After this operation, 295 kB disk space will be freed.
Do you want to continue [Y/n]?

so obviously I cancelled out b/c I sure don't want to uninstall kubuntu-desktop*!!!

I've always been able to fix the glx issues with my 'old' ati card since the binary drivers stopped supporting it, I'm frankly not sure when this particular issue started as I haven't been using gl functions lately. I noticed that if I examine a purge of nvidia-common command in aptitude (still ever so useful) then it says I could backstep kubuntu-desktop to 1.222 from 1.222-1 and that would fix the dependency issue. But why would kubuntu-desktop DEPEND on nvidia-common in the first place doesn't this conflict with ati drivers? Or am I barking up the wrong tree altogether?

thanks for any help you can offer!

[Snowhog]

Re: no glx with radeon 482.

so obviously I cancelled out b/c I sure don't want to uninstall kubuntu-desktop*!!!

From the description of package kubuntu-desktop:

This package depends on all of the packages in the Kubuntu desktop system. Installing this package will include the default Kubuntu Plasma Desktop or Netbook installation.

It is safe to remove this package if some of the desktop system packages are not desired.