For Xubuntu 25.10, the process is similar but with some XFCE-specific steps. Here's how to set up Chinese language support and input methods:

1. Install Chinese Language Support
   System Language Packages
   sudo apt update
   sudo apt install language-pack-zh-hans language-pack-zh-hans-base
   Fonts (Recommended)
   sudo apt install fonts-noto-cjk fonts-wqy-microhei fonts-wqy-zenhei
2. Install Chinese Input Method
   Option A: Fcitx5 (Modern, Recommended)
   Fcitx5 works better with newer Xubuntu versions:
   sudo apt install fcitx5 fcitx5-chinese-addons fcitx5-frontend-gtk4 fcitx5-frontend-gtk3 fcitx5-frontend-qt5
   Configure Fcitx5:
   Log out and log back in
   Run in terminal: fcitx5-configtool
   Click +​ → uncheck "Only Show Current Language"
   Search for and add:
   Pinyin​ (for simplified Chinese)
   Shuangpin​ (if you use double pinyin)
   Auto-start:
   echo "fcitx5 -d" >> ~/.xprofile
   Option B: IBus (Simpler)
   sudo apt install ibus-libpinyin ibus-gtk ibus-gtk3
   Configure IBus:
   Open Settings​ → Session and Startup
   Go to Application Autostart​ tab
   Add: ibus-daemon -drx
   Run: ibus-setupto configure

3. Set System Language to Chinese
   Change Display Language
   Open Settings Manager​ → Language
   Click Add Language
   Select 中文 (简体)
   Drag it to the top of the list
   Log out and log back in
   Alternative: Using Terminal

   Set locale

   sudo update-locale LANG=zh_CN.UTF-8

Or for specific components

sudo update-locale LC_TIME=zh_CN.UTF-8 LC_NUMERIC=zh_CN.UTF-8

4. Set Up Input Switching
   For Fcitx5:
   Default shortcuts:
   Switch input method: Ctrl + Space
   Switch between languages: Super + Space
   Change shortcuts:
   fcitx5-configtool
   Go to Global Options​ → Trigger Input Method
   For IBus:
   Switch input: Super + Space
   Configure: ibus-setup

5. Fix Common Issues
   Input Method Doesn't Show

   Check if running

   fcitx5-remote # Should return 0

   If not, start it

   fcitx5 -d

Or for IBus

ibus restart
Missing Tray Icon
sudo apt install fcitx5-module-xorg
Then add to ~/.xprofile:
export GTK_IM_MODULE=fcitx5
export QT_IM_MODULE=fcitx5
export XMODIFIERS=@im=fcitx5
Font Rendering Issues

Install font config

sudo apt install fontconfig-config

Rebuild font cache

fc-cache -fv

6. Complete Setup Script
   Run this for a complete setup:

   !/bin/bash

   Chinese support for Xubuntu 25.10

   sudo apt update
   sudo apt install -y \
   language-pack-zh-hans \
   fonts-noto-cjk \
   fonts-wqy-microhei \
   fcitx5 \
   fcitx5-chinese-addons \
   fcitx5-frontend-gtk4 \
   fcitx5-frontend-gtk3

Create config files

cat > ~/.xprofile << EOF
export GTK_IM_MODULE=fcitx5
export QT_IM_MODULE=fcitx5
export XMODIFIERS=@im=fcitx5
fcitx5 -d &
EOF

echo "Install complete. Please log out and log back in."