Recently, I installed Linux CachyOS v6.12.7 with KDE Plasma v6.2.4. I write a lot of Chinese, so I installed fcitx5 with Chinese input methods:
sudo pacman -S fcitx5-im fcitx5-chinese-addons
The Chinese input methods work in Google Chrome, Firefox, and other applications, but not for WPS Office and WeChat. I checked the wiki page of fcitx5, and used the command fcitx5-diagnose to see whether I can get some clues. I made a ‘.xprofile’ file and put the commands below:
export XMODIFIERS=@im=fcitx
export QT_IM_MODULE=fcitx
export GTK_IM_MODULE=fcitx
However, I still could not activate Chinese input methods in WPS and WeChat. I googled and found that I need to add some “environment variables” when running these two applications. I tried in terminal and it works. Later I found an easier method to add “environment variables” for any programs in the START menu (right click the entry and choose Edit Application).
Just add XMODIFIERS=@im=fcitx in the “Environment Variables” field for WeChat and QT_IM_MODULE=fcitx for WPS (if writer, spreadsheet, and presentation are separate apps, modify all of them).
