I also had this problem after upgrading from 12.04 to 14.04 and fixed it by creating a new file (/etc/X11/Xsession.d/01path_fix) and putting the following in it:
# Fix for https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1184878 PATH=$PATH:/sbin It's a bit annoying that it puts /sbin in normal user paths though. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1184878 Title: when upstart init the session jobs, it should be robust against environment changes (fallback?) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1184878/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs