This is apparently not so much a bug, but only things being different. In Ubuntu 13.10, the "semi-maximize left" can be configured under *compizconfig-settings-manager* Desktop → General → 'Ubuntu Unity Plugin' "Key to vertically maximize the focused window to the left"
As answered by Sneetsher in http://askubuntu.com/a/437390/62612 ** Changed in: compiz (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1293505 Title: Disabling 'put left' and disabling tiling in compizconfig-settings- manager has no effect To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1293505/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs