I have a laptop with an Intel GMA 950. It suspends and resumes correctly, right out of the box. Well,almost correctly. The suspend works perfectly, but on resume there are a couple problems:

1. The brightness is all the way downon the screen. By all the way down, I mean far lower than you can usually make it by using the fn+brightness keys. However, all I have to do to restore correct brightness is press one of the fn+brightness keys once, so this is not really an issue for me.
2. After I resume from a suspend, I get two thin horizontal lines on my screen, one on the right 3/4 of the way down, and one on the left, a bit lower. They are not static, and they are linked. For example, if I can see my desktop and click and drag to create a selection box that goes over one of them, the other will change colors. Also, on any kind thing where I can scroll, like a website, the lines get even more wacky, and move with the scrolling while leaving artifacts. See screenshots for an example of that--I think also that it is significant that they show up in screenshots. This problem is much more bothersome than problem #1, so much so that it makes suspend impractical.

The first screenshot gives you an idea of where the lines are, and the second two show how they are "linked". The first of the two was created by just pressing the down arrow on my keyboard a few times in arow (thus the even increments), and the second one was created by clicking and dragging on the scrollbar.

Resume from suspend is a feature designed by the laptop makers to be controlled by certain versions of M$ software so that it works at all in OS land is a minor miracle. Just disable it or upgrade to a later kernel for it's latest and greatest (flakiest ?) incarnation.