I guess the core issue is that Ubuntu doesn't use the keyboard settings from xorg.conf (since it has its own program to set up the keyboard), but plugging the usb keyboard and mouse resets keyboard settings to ones in the config file.
I guess the core issue is that Ubuntu doesn't use the keyboard settings from xorg.conf (since it has its own program to set up the keyboard), but plugging the usb keyboard and mouse resets keyboard settings to ones in the config file.