I am running the 8,1 Macbook Pro. It has the integrated Intel HD 300 gpu. I've noticed the graphics performance is drastically worse in Ubuntu than in OS X. I tested this using the bullet physics library (http://bulletphysics.org/wordpress/) demos. In OS X, they all run flawlessly and smooth. In Ubuntu on the same laptop they're unusable. I can't properly interact with them because they hang so much and the framerate is so low.
Is this a driver issue? Any fixes or possibility of this being fixed?
I was planning on working with some bullet stuff, but the performance is much worse than is reasonable.
Best Answer
I'm also running Intel HD 3000 on Thinkpad T420. Using standard 11.04 driver, even glxgears is very choppy and pressing the windows button to access search is unresponsive. I've came across a better HD3000 driver here:
http://phoronix.com/forums/showthread.php?50038-Updated-and-Optimized-Ubuntu-Free-Graphics-Drivers
Now the performance improved a bit, glxgears managed to get 60fps constantly although there still some hiccups and still some graphical glitch in games like nexuiz and tremulous. Nexuiz is still not playable though.