Launching pgadmin with the GTK_IM_MODULE environment variable set to anything but "ibus" ("GTK_IM_MODULE=foo pgadmin3" from the command line) seems to inexplicably fix it on my system without system-wide modifications like globally disabling IBus. I found it out after hints from http://trac.wxwidgets.org/ticket/16840#comment:7.
Launching pgadmin with the GTK_IM_MODULE environment variable set to anything but "ibus" ("GTK_IM_MODULE=foo pgadmin3" from the command line) seems to inexplicably fix it on my system without system-wide modifications like globally disabling IBus. I found it out after hints from http:// trac.wxwidgets. org/ticket/ 16840#comment: 7.