@aha_1980 said in Ctrl+Shift+U does not work as expected with creator on linux: @koahnig: Looks like QTCREATORBUG-13811. Quoting there for possible workaround: For me, deactivating the "IBUS" keyboard input method, as described here http://superuser.com/questions/358749/how-to-disable-ctrlshiftu-in-ubuntu-linux worked. Yes, you are right it does at least partly describe the behaviour. I have checked the workaround. Language support was not installed yet, but I have installed it and changed the setting to none as described. Reboot of virtualbox and it does work now. Thanks a lot.