The same behavior on 14.04 and 15.04 - if QT app is open, all windows for it are closed, like Keepassx, skype, WPS office asks whether to save the contents of documents (this kinda seems like pressing Alt+F4).
14.10, which was troublesome to use for me so I don't use it, didn't have this problem. I'm running Dell, XPS 15 L521X model, can't verify on any other computer. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1426851 Title: Power button shuts down computer if a Qt application is running To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1426851/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs