Kernel Mode Setting in Ubuntu 10.04 is a superb thing when it work.
What KMS gives:
* Flicker free switching from X to terminal (using CTRL-ALT-F1)
* Nice full resolution boot logo
What bad side-effects it gives some computers:
* Suspend/Hibernat not working
* Open GL only in software mode (Slow)
Here is how to disable it:
sudo nano /etc/default/grub
Then look for the line
GRUB_CMDLINE_LINUX=””
and change it to
GRUB_CMDLINE_LINUX=”nomodeset”
sudo update-grub
That’s it!