claude-code - 💡(How to fix) Fix [BUG] Running in `screen` leaves rather corrup output [1 participants]

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anthropics/claude-code#47913Fetched 2026-04-15 06:38:48
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Error Message

Error Messages/Logs

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Preflight Checklist

  • I have searched existing issues and this hasn't been reported yet
  • This is a single bug report (please file separate reports for different bugs)
  • I am using the latest version of Claude Code

What's Wrong?

Running claude code in screen (even screen -U) is totally unreadable. This is a rather important workflow for those who want to just spawn a claude session and reconnect to it later. Colors are all off - background and foreground colors similar so the text is unreadable, etc.

What Should Happen?

The output should be readable

Error Messages/Logs

Steps to Reproduce

screen then run claude.

Claude Model

None

Is this a regression?

No, this never worked

Last Working Version

No response

Claude Code Version

2.1.107 (Claude Code)

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

No response

extent analysis

TL;DR

The issue can likely be resolved by configuring the terminal or screen settings to properly handle colors and text rendering.

Guidance

  • Check the screen configuration to ensure it is set up to handle colors correctly, possibly by adding the termcapinfo xterm* 'Co#256:AB=\E[48;5;%dm:AF=\E[38;5;%dm:' line to the ~/.screenrc file.
  • Verify that the Claude Code version 2.1.107 is compatible with the screen version being used.
  • Investigate alternative terminal multiplexers, such as tmux, which may handle colors and text rendering more effectively.
  • Consider setting the TERM environment variable to a value that is known to work with screen and Claude Code, such as xterm-256color.

Example

No specific code example is provided, as the issue is related to terminal configuration rather than code.

Notes

The solution may depend on the specific screen and terminal versions being used, as well as the system configuration. Further investigation and experimentation may be necessary to find the optimal solution.

Recommendation

Apply workaround: The issue is likely related to the interaction between screen and Claude Code, so applying a workaround such as configuring the terminal or using an alternative multiplexer is recommended.

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