It isn't problem of pcmanfm as libfm (and pcmanfm in turn) correctly prepares notification, but Openbox fails to change cursor, it's why startup notification doesn't work from any application running in Openbox. That issue was fixed in some version of Openbox, you have to upgrade or patch it. Thank you.
** Also affects: openbox (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1336521 Title: Application Startup Notify fully ignored To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openbox/+bug/1336521/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs