$ cat /etc/X11/xinit/xinitrc.d/100xinputrc #!/bin/bash XMODIFIER=@im=SCIM ## it is XMODIFIER , no XMODIFIERS , OMG XIM=SCIM XIM_PROGRAM=/usr/bin/scim XIM_ARGS="-d" GTK_IM_MODULE=xim QT_IM_MODULE=xim export XMODIFIER XIM XIM_PROGRAM XIM_ARGS GTK_IM_MODULE QT_IM_MODULE DEPENDS="scim,scim-gtk2-immodule | scim-qtimm" skim -d