The im-launch command is used to start a input method framework server daemon such as ibus-daemon, set up the appropriate environment variables for the client programs, and execute SESSION-PROGRAM such as x-session-manager.
This command is usually not invoked from the console of a normal user but is normally invoked by the /etc/X11/Xsession.d/70im-config_launch.
If you have any problem, see the first part of ~/.xsession-errors and look for the cause. If you are running im-config while Debian (sid) system is undergoing a major library transition, you may need to manually set up ~/.xinputrc with adjusted library version number etc. Please file a bug report to the im-config package using reportbug(1) describing your resolution experience.
This manual page was written by Aron Xu <email@example.com>, and Osamu Aoki <firstname.lastname@example.org> for the Debian GNU/Linux system (but may be used by others).