I am an Intel 915GM user and have yet to experience any sort of stable Compiz usage. Having tried Xgl and Aixgl from when it was not even alpha, stability has increased over time, but it's not stable enough yet. Every 3-4 days of usage, X will restart in the middle of a busy work session making me loose time and money... I always try Compiz after each Ubuntu release in hopes that 6 months of development may have increased stability, but even with Hardy the same 3-4 day rule appears to be true. (I recall that Firefox 3 Beta + Google Spreadsheet + Compiz was a sure-to-crash combination for instance).
I have also installed Ubuntu on two other computers, both using ATI cards which up until recently required Xgl which has been stable but requires a lot of CPU and what not.
I have only heard good things about Nvidia+Compiz combination, so now when it's time to get a new laptop I am very interested in the very question that is in this threads topic: Is Nvidia graphics required to attain stable Compiz effects?
Thanks for any info!
Cheers
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