Though I read the release notes, I failed to note the warning, which was at the end of the notes, spoke of 8xx chips I didn't realize I had, and failed to have big blinking letters telling me that a machine that has been working fine for years was suddenly going to be rendered completely incapable of booting in any mode whatsoever.
I couldn't even boot off the CD. I had to boot from a 9.10 CD in order to make the changes.
I have tried, I believe, all the workarounds mentioned in various posts. None worked for me. Some spoke of getting a newer kernel, which I had tried but decided to try again.
Success!
This worked for me:
1) edit /etc/defaults/grub (as root)
2) add i915.modeset=1 to the default line:
GRUB_CMDLINE_LINUX_DEFAULT="splash i915.modeset=1"
(Mine previously had i915.modeset=0 nomodeset, otherwise the machine froze on resuming)
3) save and run the command update-grub (as root)
That let me boot. But my system still crashed if I attempted to run any kind of video with any program. Firefox and some other programs would get stuck as soon as they opened and leave trails all over the screen if I grabbed and moved them.
The new kernel fixed that:
4) go to
http://kernel.ubuntu.com/~kernel-ppa/mainline/ and find the newest directory (I used v2.6.34-rc7-lucid)
5) download the image and header files, and install them with dpkg -i or gdebi-gtk
6) reboot and choose that kernel.
Bookmarks