I encounter a similar behavior with my netbook (32-bit, Intel 945GSE), KDE 4.8.3 (Kubuntu). At every login, performances are unbearably slow, despite the fact that the settings report the OpenGL mode as active.
To fix the problem I have to switch the compositing type to XRenderer, apply, then set it back to OpenGL. When I do this, I get prompted with the same message Robert reported for this bug. By testing it with a freshly created user, I can trigger the bug even without having to logout first. I've tested it on the aforementioned netbook: -log with the default Plasma Netbook mode (max performances, very fluid) -switch to Plasma Desktop (still max performances, very fluid) -In System Settings->Desktop Effects->All Effects change any of the plugins already activated (i.e. Desktop Grid) then press Apply (desktop extremely slow, kwin constantly at 100% CPU usage) -switching back and forth between OpenGL and Xrenderer fixes the problem -at the next login, the desktop will be very slow again. -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kde-workspace in Ubuntu. https://bugs.launchpad.net/bugs/903097 Title: kwin crash on second (and subsequent) login To manage notifications about this bug go to: https://bugs.launchpad.net/kdebase-workspace/+bug/903097/+subscriptions -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
