Also, an addendum to the previous instructions, the Ubuntu repo that has version 1.2.3-0ubuntu2.5 of lightdm is the precise-updates repo. To add that repository, do the following:
>From terminal: sudo gedit /etc/apt/sources.list Add the following lines to the end of your file: ###### Ubuntu Update Repos deb http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted universe multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted universe multiverse Save changes, close the file, then run the following from Terminal: sudo apt-get update && sudo apt-get install lightdm=1.2.3-0ubuntu2.5 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1431654 Title: lightdm (1.2.3-0ubuntu2.6) 100%/high cpu usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1431654/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs