claude-code - 💡(How to fix) Fix Desktop app: text rendering breaks when window height exceeds threshold on Intel Mac [1 participants]

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anthropics/claude-code#48123Fetched 2026-04-15 06:32:31
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On Intel Mac, when the desktop app window height exceeds a certain threshold, the text rendering breaks — text gets clipped/cut off on the left side, making messages partially unreadable.

Root Cause

On Intel Mac, when the desktop app window height exceeds a certain threshold, the text rendering breaks — text gets clipped/cut off on the left side, making messages partially unreadable.

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<img width="1247" height="804" alt="Image" src="https://github.com/user-attachments/assets/ff012770-6fc6-4db8-9887-0fe9ef535e67" /> <img width="1144" height="549" alt="Image" src="https://github.com/user-attachments/assets/ff76266e-b035-4409-a417-8a396831f964" />

Description

On Intel Mac, when the desktop app window height exceeds a certain threshold, the text rendering breaks — text gets clipped/cut off on the left side, making messages partially unreadable.

Steps to reproduce

  1. Open Claude Code desktop app on Intel Mac
  2. Resize the window height beyond a certain point (roughly the size shown in screenshots)
  3. Observe that message text becomes clipped on the left edge

Expected behavior

Text should render fully regardless of window size.

Actual behavior

Text is cut off on the left side. The beginning of lines is not visible. See screenshots below.

Screenshots

Bug visible — text clipped on left side

screenshot1

Smaller window — shows the threshold

screenshot2

Environment

  • Platform: macOS (Intel Mac)
  • App: Claude Code Desktop
  • Model: Opus 4.6

extent analysis

TL;DR

Adjusting the CSS styling or layout management in the Claude Code desktop app to properly handle window resizing and text rendering may resolve the issue.

Guidance

  • Investigate the app's CSS or layout configuration to identify any fixed-width or absolute positioning settings that could be causing the text clipping issue.
  • Verify if the problem occurs on other macOS platforms or only on Intel Macs to determine if it's hardware-specific.
  • Check the app's window resizing logic to ensure it correctly updates the text container's width and positioning when the window height exceeds the threshold.
  • Consider adding a minimum width constraint or a dynamic resizing mechanism to prevent text clipping.

Example

No specific code example can be provided without knowing the app's technology stack or codebase, but a general approach might involve using CSS media queries or JavaScript to adjust the text container's styles based on the window size.

Notes

The issue might be specific to the Opus 4.6 model or Intel Macs, and further testing on different environments could help isolate the root cause. Without access to the app's code or more detailed information about the technology stack, it's challenging to provide a precise solution.

Recommendation

Apply a workaround by adjusting the app's CSS or layout configuration to handle window resizing and text rendering correctly, as upgrading to a fixed version is not mentioned in the issue.

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FAQ

Expected behavior

Text should render fully regardless of window size.

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claude-code - 💡(How to fix) Fix Desktop app: text rendering breaks when window height exceeds threshold on Intel Mac [1 participants]