When adding several keyboard layouts to Ubuntu (lucid), I experienced that any control key combination refers to the "default" keyboard layout.
Specifically, on a machine I have to prepare for others, I would like to set a default keyboard to a common layout. Me myself, I like to type in dvorak, and therefore set this as a secondary layout (in the System/Preferences/Keyboard/Layouts menu) so that I can switch to it when i am using the setup.
Throughout the system, the control key combinations refer to the default layout. I.e. to type Ctrl+R for a reverse search in a terminal, I'll have to hit the R key on the common layout.
Any ideas how to fix this?