I have a somewhat similar experience; there seem to be multiple bugs reported on Launchpad surrounding such issues (e.g. <a href="https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video- intel/+bug/177492">#177492</a>), but this one seems to come closest. I'm on Hardy (fully updated), I'll attach my Xorg.0.log here.
Though I did notice the slowdown in scrolling with Firefox occasionally, I've since switched to using mainly Epiphany, and have found it to be much more susceptible to the same issue: after some time, scrolling becomes horribly sluggish. The CPU usage monitor I've added to my panel shows it's 100% during the scrolling. Once this happens, the issue remains until I either log out and back in, use fusionicon to 'Reload Window Manager', or disable desktop effects. Re-enabling them within the same session immediately re-introduces the problem. However, I'm using swfdec for flash, so at least in that respect this is different from the original report. I'm also unable to reproduce this at will; it does seem to happen multiple times a day, but I haven't found any particular website which would consistently trigger it (the URL given by the initial reporter doesn't do it either). This morning I booted the Intrepid alpha 4 Live CD. Changed the xorg.conf there to match my production environment (verified from Xorg.0.log that it was indeed using EXA and "greedy" for MigrationHeuristic), installed Epiphany and swfdec, then played around with Firefox and Epiphany for a while, trying to trigger this, but didn't manage to do so. Either the issue is fixed in Intrepid, or I just didn't happen to come across it during my testing. ** Attachment added: "Xorg.0.log" http://launchpadlibrarian.net/17134711/Xorg.0.log -- firefox-3.0 scrolls jerkily with ATI driver, EXA and compiz https://bugs.launchpad.net/bugs/213734 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
