Classic mode missing desktop effects after updates

I fixed it :D

I did it by modifying "/usr/share/gnome-session/sessions/classic-gnome.session". So for future reference:

Before you start, check why Unity/Compiz is not working. You can do this with:

/usr/lib/nux/unity_support_test -p

And:

/usr/lib/nux/unity_support_test -p --compiz

If some tests fail there is probably a better way to fix this (like installing/updating drivers). In my case all tests were passed, but my videocard was blacklisted. When I started Compiz manually (with setsid compiz --replace) it ran fine anyway. I wanted to make it permanent, so I took the following steps:

Safety first, so make a backup of the file:

cd /usr/share/gnome-session/sessions/
sudo cp classic-gnome.session classic-gnome.session.backup

Then edit the file with:

sudo gedit classic-gnome.session

Remove the last 3 lines, being:

IsRunnableHelper=/usr/lib/nux/unity_support_test --compiz
FallbackSessionsID=GNOME2d
GNOME2d=2d-gnome

So the file now only contains:

[GNOME Session]
Name=Classic GNOME
Required=windowmanager;panel;filemanager;
Required-windowmanager=gnome-wm
Required-panel=gnome-panel
Required-filemanager=nautilus
DefaultApps=gnome-settings-daemon;

After saving the file, it boots to Ubuntu Classic, including Effects :D

Source: http://ubuntu4beginners.blogspot.com/2011/05/force-unity-compiz-to-run-natty-narwhal.html

Classic mode missing desktop effects after updates

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