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Screen content does not update in tmux #7128

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opened 2026-01-31 00:55:51 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 00:55:51 +00:00
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Originally created by @kasper93 on GitHub (Mar 24, 2020).

Originally assigned to: @miniksa on GitHub.

Environment

Windows 10.0.18363.0
tmux over ssh in cygwin

Steps to reproduce

  1. Attach to tmux session
  2. Fill the screen for example with echo test multiple times
  3. Keep printing test, you should alternate with some different text to see if console is scrolled properly.

Expected behavior

Whole screen buffer is redrawn

Actual behavior

Only first line in terminal is redrawn, the rest of the screen space is static and doesn't update while it should. If the output is one line (i.e without new line). If I do echo 'test\n' whole screen is properly redrawn.

Bisect result

This is regression from this commit ca33d895a3 before that everything was working fine.

// CC @miniksa

Originally created by @kasper93 on GitHub (Mar 24, 2020). Originally assigned to: @miniksa on GitHub. # Environment Windows 10.0.18363.0 tmux over ssh in cygwin # Steps to reproduce 1. Attach to tmux session 2. Fill the screen for example with `echo test` multiple times 3. Keep printing `test`, you should alternate with some different text to see if console is scrolled properly. # Expected behavior Whole screen buffer is redrawn # Actual behavior Only first line in terminal is redrawn, the rest of the screen space is static and doesn't update while it should. If the output is one line (i.e without new line). If I do `echo 'test\n'` whole screen is properly redrawn. ## Bisect result This is regression from this commit https://github.com/microsoft/terminal/commit/ca33d895a359664c337c6482b853489823c216d3 before that everything was working fine. // CC @miniksa
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Reference: starred/terminal#7128
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