It looks like you are running out of memory, and since there is no swap everything becomes unresponsive. With 993 MB of RAM I'd recommend making a swap partition of at least 1 GB.
** Changed in: ubuntu Status: New => Invalid -- Clean Kubuntu install. Desktop crashes after 15 minutes https://bugs.launchpad.net/bugs/388545 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