i use ubuntu 6.06 lts version of linux. I couldn't have found any solution so I reinstall whole system. It didn't appear after reinstallation and there where no problem with adding keyboard language support. thanks.
radim -- error activating XKB configuration https://launchpad.net/bugs/73908 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
