Comment 14 for bug 538377

(In reply to comment #5)
> Using the ubuntu 2.6.33-020633-generic kernel, setting new_pll=0 makes
> the system unusable.
>
> From the time it goes into graphics mode just prior to gdm starting,
> the screen blinks to black every few seconds, then returns to normal for
> a second or two, then repeats this sequence.
>
> How can I check if this patch has been applied to a ubuntu kernel image?
>

Bryce would know for sure, but it was only applied after 2.6.33 was released, so I suspect it's not in the ubuntu kernel. The 2.6.34rcX kernels should have it.