Comment 82 for bug 339091

There absoutely are freeze bugs in UXA and EXA both in the default Jaunty configuration, so we need an SRU of some type, even if it's a bug that affects performance.

The good news is that a whole bunch of them are fixed, either in kernel updates or in updates in -proposed - so with a little time devoted to packaging the smallest possible SRU (I'd suggest 2.7.1, the MTRR fixes, and some sort of fix for the tiling stuff, maybe a cherry-pick), we can at least make Jaunty work out of the box, probably using EXA and Greedy migration, since that seems to work for most people I've seen posting on these bugs, at a reasonable level of performance.

Anyhoo, the even better news is that EXA and UXA are BOTH rock solid for me under .30rc7, or a patched kernel (from one of these bugs), and desktop performance is acceptable. Game performance isn't what it should be but I now realise that UXA and DRI2 is the way to go, and bleeding-edge gamers will have to wait for Karma and we can't fix the Intel issues from where we are standing. That's life!

So in summary - I think 2.7.1 really does fix this bug - it did for me.

UXA has all sorts of cosmetic problems and the font-corruption bug comes and goes, but I guess I'll need to upgrade to Karmic before there's any point in reporting bugs against UXA. UXA is about half the speed of EXA for 3d apps (but MIGHT be slightly quicker in 2d.)