Hi!
Following Chantra's demonstration I filled a bug on iBus project
regarding the input problem when using Cambodian language. The report is
here:
http://code.google.com/p/ibus/issues/detail?id=656
Please do go and extend the description and the eventual fixes (it
doesn't work for me btw). The more people comment on the bug the more
changes it will get fixed faster.
Thanks.
Fred