Chinese output occasionally renders duplicated characters and misaligned layout in Ghostty (macOS) #8175

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1. burugo

   added

   bugSomething isn't workingSomething isn't working

   on Jan 13, 2026
2. github-actions

   assigned

   kommander

   on Jan 13, 2026
3. github-actions

   added

   opentuiThis relates to changes in v1.0, now that opencode uses opentuiThis relates to changes in v1.0, now that opencode uses opentui

   on Jan 13, 2026
4. github-actions commented on Jan 13, 2026

   

   github-actionsBot

   on Jan 13, 2026 – with GitHub Actions

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   This issue might be a duplicate of existing issues. Please check:

   • OpenCode TUI Chinese Text Display Issue #7891: OpenCode TUI Chinese Text Display Issue - Chinese characters display incorrectly or are hidden in certain versions
   • Chinese text in background chat disappears when Ctrl+P command menu is open #7650: Chinese text in background chat disappears when Ctrl+P command menu is open - CJK text visibility issues
   • CJK characters break some features like @ mentions #3734: CJK characters break some features like @ mentions - General CJK character width/rendering handling problems
   • Unicode character in line causing rendering to count characters incorrectly #5763: Unicode character in line causing rendering to count characters incorrectly - Similar rendering/counting issues with multi-byte characters
   • Chinese input shows magnifier icon after each character on Ubuntu #7916: Chinese input shows magnifier icon after each character on Ubuntu - CJK character display issues
   • TUI editor hides some double-byte characters in the input field #2920: TUI editor hides some double-byte characters in the input field - Double-byte character visibility in input

   All of these relate to CJK (Chinese, Japanese, Korean) character rendering and layout issues in the terminal UI. Your issue specifically focuses on Chinese text duplication and misalignment in Ghostty, which appears to be a terminal-specific manifestation of broader CJK rendering problems.

   Feel free to ignore if your specific case with Ghostty on macOS represents a unique scenario.
5. kommander commented on Jan 13, 2026

   

   kommander

   on Jan 13, 2026 – with Linear

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   I am working on it.

   👍React with 👍4Reacted by Lyle Classen, Will Liu, getbug and kaocong
6. getbug commented on Mar 23, 2026

   

   getbug

   on Mar 23, 2026

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   it be reproduced stably by paste"分析一下OpenCode 代码仓，帮排查一个问题，问题是：在模型问答界面，使用鼠标滑轮进行滚动时，侧边没有出现可以拖拽的边栏"
7. thdxr

   removed

   bugSomething isn't workingSomething isn't working

   opentuiThis relates to changes in v1.0, now that opencode uses opentuiThis relates to changes in v1.0, now that opencode uses opentui

   on May 3, 2026
8. github-actions commented on Jul 6, 2026

   

   github-actionsBot

   on Jul 6, 2026 – with GitHub Actions

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   To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.
9. github-actions

   closed this as not plannedon Jul 6, 2026