I downloaded Ubuntu 11.04 and it was working fine until I started tweaking compiz and rebooted. It took 3 to 4 minutes to boot up. When I press enter at the boot menu, there is a black screen with something flickering on the top left corner, which is normal, but for me the black screen stays for 4 to 5 mins. It is driving me crazy. Please explain your answer as I am not the terminal stuff.
you can try to trace down the issue by installing bootchart available in repos. http://en.wikipedia.org/wiki/Bootchart
I'm on 11.10 with
So I decided to look if some processes related to nVidia differ in both boots.
And indeed I found out that
That lead me to conclusion that disabling
For sure it is not the solution, but at least a direction to look.
Hope this helps.
P.S. Make sure you know what are you doing while dealing with system files.