Emacs can not activate fcitx

[PL RE]

I can use fcitx normally in all of other programs. But I can't not use fcitx in Emacs which means I can not switch to other input method such as Chinese input method. I tried a lot and Googled a lot didn't find solution. This confuses me a lot!

I use `emacs -q` to start emacs.

Can you help me? Thanks in advance!

1.  1. Emacs version: 25.1.1
2.  2. fcitx version: 4.2.8.5
3.  3. Operating system: Slackware 14.2

`uname -a` output:

    Linux Planet 4.4.38 #2 SMP Sun Dec 11 16:18:36 CST 2016 x86_64 Intel(R) Core(TM) i3-2330M CPU @ 2.20GHz GenuineIntel GNU/Linux

`fcitx-diagnose` output:  fcitx-diagnose

`~/.xprofile` and `~/.profile` both contain the following:

    export XMODIFIERS=@im=fcitx
    export LC_CTYPE=zh_CN.UTF-8
    export QT_IM_MODULE=fcitx
    export GTK_IM_MODULE=fcitx