Ubuntu 11.10 boot freezing at Checking Battery State because LightDM fails to load

It is always a scary experience upgrading Ubuntu versions because it seems like about half of the time somethings goes wrong.  (Although, to be fair, usually things are also fixed.)  From my recent update from Ubuntu 11.04 to 11.10 my boot froze after the Checking Battery State [OK] status line.  It didn't take me long to realize that something was wrong with LightDM and I found this forum post: http://ubuntuforums.org/showthread.php?p=11356915#post11356915

Fortunately, the problem and the fix is simple.  LightDM is missing a dependency that it needs which is why it fails when trying to load.  To get the dependency install use the key combination CTRL+ALT+F1 and log into a terminal session.  From there you can install the missing dependency:
sudo apt-get install lightdm-gtk-greeter

I rebooted after that by running 

sudo reboot

But you could also try to restart LightDM by running

sudo /etc/init.d/lightdm restart

Good luck and enjoy the updated Ubuntu!

fix for update

now is freezing at stopping userspace bootsplash...

fix for update

stoping at checking battery again

[SOLVED] 11.10 stops booting at "Checking battery state ... [OK]

I'm having the same trouble. There's a support thread #1859820 at ubuntu forums about reinstalling video drivers, but the spam filter won't let me post the exact link

[SOLVED] 11.10 stops booting at "Checking battery state ... [OK]"

Here is the link from the

Here is the link from the previous comment. Thanks for the update!

http://ubuntuforums.org/showthread.php?t=1859820

is ok

Funcion├│ para mi, buen post, gracias

i come up with the same

i come up with the same problem,and i don't know how to fixed. because it offer no tips!

Thank you so much man you

Thank you so much man you saved me!!

Solved by removing auto login

I was facing the same problem. Got it solved by removing the auto login entries from /etc/lightdm/lightdm.conf

Cheers

freeze at check battery state

followed the advice ctr/alt/F1. can't log on to get to terminal session using what I thought was my username / pw for ubuntu. now what? is there somew hidden master Ubuntu username / pw I can use?

Maybe you can try the root

Maybe you can try the root login. Also, make sure you are spelling your username and password correctly, with Caps Lock off. Maybe you could also do an rescue boot with network support, but I'm not sure you could use apt-get from there.

sudo dpkg-reconfigure lightdm

yes, this command solved my problem. Thx.

Checking Battery Status halt! LightDM

Thanks a ton! It worked!