zerozero wrote:i would check 2 things:
1- were you using compiz before (in the gnome2 era) and was it in startup apps? if so, remove it from there, if you want cinnamon or gnome-shell you can't have compiz, that simple.
2- is your video card capable of handling 3D acceleration and are the drivers installed? without 3D acceleration you can't have cinnamon or gnome-shell.
Just like to say thanks zerohero. I had the same issue after Update Pack 4 and was stumped until I read your reply.
I moved these out of ~/.config/autostart:
remmina-applet.desktop - an application for remote desktop
and now Gnome rather than Gnome Classic is possible.
Out of interest:
$ inxi -Gx
Graphics: Card Intel Mobile 4 Series Chipset Integrated Graphics Controller X.Org 1.11.4 Res: firstname.lastname@example.org
GLX Renderer Mesa DRI Mobile Intel® GM45 Express Chipset x86/MMX/SSE2 GLX Version 2.1 Mesa 7.11.2 Direct Rendering Yes
All I need do now is decide whether to keep Gnome as it is or go for Cinammon.