On further investigation, it seems this was caused by the dastardly iowait kernel bug:
http://bugzilla.kernel.org/show_bug.cgi?id=12309 I'm sure that one is in launchpad somewhere but I couldn't find it. Trackerd was running in the background right after the upgrade, and because the kernel can't properly load-balance when IO is occuring, everything became extremely slow. The X process (not xournal) was consuming 100% cpu while drawing. The result, ironically was nearly the same symptoms as I saw before with this bug. Killing trackerd fixed it. I hope someone fixes this kernel bug soon, it's hitting me from every side... ** Bug watch added: Linux Kernel Bug Tracker #12309 http://bugzilla.kernel.org/show_bug.cgi?id=12309 ** Changed in: libgnomecanvas (Ubuntu) Status: Confirmed => Fix Released -- [regression, intrepid] redraw problems, patches from fedora https://bugs.launchpad.net/bugs/272316 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
