Totem & DVDs - stutters a bit when not on battery

[dave]

Hello All,

I was on a flight a couple weeks ago and watched a DVD with Totem. It
played flawlessly. However, when I tried to watch the remainder of the
movie in my hotel room, the DVD playback now had a noticable stutter
to it. I soon realized that the only difference from earlier that day
was the fact that I was now plugged into a power outlet. Sure enough,
when I unplugged my laptop, the stuttering ceased.

I'm under the assumption that this must be related to acpi, but I
don't know where to start with regard to troubleshooting.

Has anyone else seen this behavior?

Any ideas as to how to proceed?

thanks in advance
Dave