I have scanned thru all the posts on this issue. But I have not been able to get a resolution. Has anyone applied a clean fix to this issue? I had 11.10 on Lenovo Thinkpad T60 and upgraded to 12.04 last night. The boot process freezes on "Checking battery state" message. I have tried startx , backing up the .conf file, nomodeset etc.. options and nothing seems to working. My video driver is 128MB ATI Mobility RADEON X1400. Any ideas on how to fix this? Also if I want to move back to 11.10, how can that be done, without doing another clean install and loosing my data.
Thanks in advance.