Feb 24, 2016 - 10:02am
After installing the intel linux graphics installer, on Ubuntu 15.10, Unity will not start. I get only a desktop (so nautilus does start), but nothing else. When I try to start Unity from a terminal, there is an error that the opengl plugin (which compiz depends on) can't be found. Mesa is installed however. Does anyone know of a way to solve this?
That's weird - can you paste the exact error message here?
The relevant line is: compiz (core) - Error: Plugin 'opengl' not loaded.
Is this what's going on? (ignoring the nvidia part - focussing on the libglx part).
Also, does tweaking the gsettings as noted here work around the problem?
The error message is the same. Tweaking the gsettings with the procedure mentioned in the comment did not work. (And I immediately lost my mouse pointer.)
However, Gnome does work, and when I run
gsetting get org.compiz.core:/org/compiz/profiles/unity/plugns/core/ active-plugins
in Gnome, then opengl is one of the active plugins.
Also: in /usr/lib/xorg/modules/extensions/ there is only one libglx.so, so that can't be the problem.
I've gone back into Unity, I still don't get the launchers or the top bar, but I can now switch windows and screens. And when I run
in a terminal, opengl is one of the active plugins.
I solved it be enabling the Unity plugin in the Compiz config setting manager, as described here: http://askubuntu.com/questions/17381/unity-doesnt-load-no-launcher-no-da...
Glad you found a fix... any idea why it was off? Nothing in the install process should go anywhere near those settings.
I have no idea, but I do remember that when I ran the graphics installer the first time, there seemed to be a hitch, and I had to run it again. But what caused the problem I don't know. Thanks for your help anyway.
Ok- thanks for letting us know about the fix.