AMD APU Support? - Lenovo H505s

[&)ky#)^]

Hey, community! Anybody have any experience getting AMD APU computers to run reasonably on Ubuntu? Here's my issue. I just got a Lenovo H505s.

Here's the specs:

CPU	AMD Dual Core E2-1800 1.7GHz
Memory	4GB DDR3 1333
Chipset	AMD A68
Graphics	AMD Radeon HD 7340

It's not exactly a powerhouse, I know. But I expect it to at least scroll through a web page in Firefox without a noticeable lag and shooting both CPU cores up to 100% utilization. My gut feeling is that it's a gaphics driver issue. I'm thinking it's doing complete software rendering instead of using the GPU features. I have a 5-year-old laptop with a celeron CPU and a crappy old intel integrated graphics chipset that outperforms this lenovo. That doesn't seem right.

So far, I've installed Ubuntu 12.04, installed all the updates, set it to use fglrx via jockey. I even tried newer drivers from the "x crack pushers" ppa. This thing is still limping along.

Has anybody had similar trouble? What can I do to get Ubuntu to perform decently?

[mörgæs]

Have you considered Lubuntu 13.10?

[&)ky#)^]

Well, according to this my hardware is certified to work with Ubuntu 12.04. So what am I doing wrong?

http://www.ubuntu.com/certification/.../201305-13633/

[mörgæs]

Certification indicates that stuff works, it's not a measure of speed.
I would still suggest that you search a little wider, trying at least one alternative (say, Lubuntu) for comparison.