I have the same problem in Ubuntu 16.04.3, but only for certain applications (jabref and texmaker so far).
The comment by @spoolboyy helped: I was using a USB mouse and clicking with the touchpad stopped the drag-and-drop mode. I am using a Thinkpad X1 Carbon laptop. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/402892 Title: Mouse cursor gets stuck in "drag and drop" mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rapidsvn/+bug/402892/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs