The proposed update seems to fix the problem for me. I've not seen the crash after 10 reboot and login attempts, whereas previously kwin crashed every time.
kde-window-manager 4:4.10.2-0ubuntu2.1 amd64 kde-workspace 4:4.10.2-0ubuntu2.1 ** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1174495 Title: kwin instability with r600 radeon and high monitor resolutions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kde-workspace/+bug/1174495/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs