25Aug/090
Drastically improve Intel graphics performance under Ubuntu Jackalope 9.04
The new Ubuntu Jackalope 9.04 has some performance issues with the EXA acceleration method of Intel graphic cards due to actual Kernel. This causes poor 2D performance (eg in Compiz).
There is no available fixes atm in Ubuntu Jackalope repositories but you can update to kernel 2.6.30.3 and configure your Intel graphic device following instructions on this page : HOWTO: Jaunty Intel Graphics Performance Guide.
I used "Optimal configuration" on a Dell Vostro 220s and noticed a drastic performance improvement, especially in Compiz (even in normal mode).