well, I did it. I shut down kde3 today.
I’m now running only kde4, with a handful of kde3 apps. there were a few bumps – something went funny with the systray, and neither knetworkmanager nor klaptop would run in kde4 after that – but a reboot fixed those. now I’m just wondering why amarok (from kde3) won’t start. last time it did this, running it in kde3 for a minute fixed things, but I’d prefer not to load up kde3 again unless I actually need to. :) maybe I should go compile JuK, since I’ve been meaning to have another look at that.
the great news is that running only one X screen appears to have removed all my composite issues. the weird bugs I was seeing have gone away, and X isn’t taking up 60% of the cpu any more. :) in fact, plasma seems to be more of a cpu hog (there’s something about running lots of clocks that makes it do that, it seems). I now have beautiful mostly-smooth composite eyecandy, and I love it. :D
seriously, I spent about 5 minutes obsessing over alt-tab. :)
damn, kde4 is getting awesomer every day.