Let me second that: I also already experienced different flavours of 'freezes' with plasma5 from kubuntu 15.04:
1. The first was related to a plasmashell sitting on a lockfile {code} [pid 4444] open("/home/hkaelber/.cache/plasma-svgelements-default_v0.9.7.lock", O_WRONLY|O_CREAT|O_EXCL|O_LARGEFILE|O_CLOEXEC, 0644) = -1 EEXIST (File exists) {code} removing that file, made the freeze disappear. kwin_x11 --replace did not help. 2. On an intel atom based netbook I sometimes see freezes that don't show the locking issue and can be workarounded by kwin_11 --replace -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1440210 Title: KWin crashes multiple times a day and often has to be restarted manually. To manage notifications about this bug go to: https://bugs.launchpad.net/kdebase-workspace/+bug/1440210/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs