I had the same problem on a Thinkpad T60. After upgrade to Lucid, the system wouldn't boot any more (black screen). In my case, I could SOLVE the problem by adding the kernel parameter "nomodeset".
This is how I did it: Unfortunately, the boot loader grub does not appear at all because ubuntu is the only operating system. So I first had to boot from a 9.10 live CD, mount my hard disk to /mnt, and edit the file /mnt/boot/grub/grub.cfg, where I replaced "quiet splash" by "quiet splash nomodeset". This allowed me to boot the system as usual. Note that this is not a permanent solution, as the file grub.cfg is overwritten by the update-grub script! Once the installed system is running, make the setting permanent by editing /etc/default/grub and adding the parameter "nomodeset" to GRUB_CMDLINE_LINUX_DEFAULT. This setting is then automatically transferred to /boot/grub/grub.cfg by the update-grub script. -- lucid failed to boot after fresh install https://bugs.launchpad.net/bugs/572511 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
