On Mon, 2009-03-23 at 13:12 -0700, Bryce Harrington wrote: > For those of you who have tested UXA, now that -intel 2.6.3 has been in > the archive a few days, what are your thoughts on it compared with the > default EXA?
I no longer have any serious problems. I can't use sync to vblank with compiz though. If that is enabled, compiz only updates the screen once every few seconds. I've not had time to test if this is related to the Ubuntu specific patch which disables vblank in mesa. With mesa from the Xorg edgers PPA, I'm not seeing any compiz transparency corruptions either. (Which is strange, because as far as I can make out, the commit which is supposed to fix that isn't included in the package!) I've not had time to debug what might have fixed the problem. At one point in the jaunty cycle, my graphics FPS and performance jumped and was really good. Shortly after it dropped back to the usual level and I wasn't able to figure out why. I noted this blog post today: http://jasondclinton.livejournal.com/72910.html And it seems that the cpufreq governer being broken causes low fps / 3D performance. I seem to recall some kernel fixes in Jaunty to reinstate the ondemand governor. Perhaps my brief spell with no proper CPU governor corresponded to the increased FPS. (Setting the "performance" governor rather than "ondemand" pushes my "not a benchmark" glxgears numbers from about 560fps to about 880fps.) -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) -- Ubuntu-x mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-x
