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Font size change via scroll wheel does not work when in tmux #15858

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opened 2026-01-31 04:50:35 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 04:50:35 +00:00
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Originally created by @fredrikaverpil on GitHub (Nov 12, 2021).

Windows Terminal version (or Windows build number)

1.11.2921.0

Other Software

WSL2: Ubuntu 20.04 LTS
ZSH: 5.8
tmux: 3.0a-2ubuntu0.3 amd64
tmuxinator: focal 1.1.4-3

Steps to reproduce

Using .tmux profile:

# enable mouse
set -g mouse on
set -g terminal-overrides 'xterm*:smcup@:rmcup@'

# use zsh as the default shell
set-option -g default-shell /bin/zsh

I would have expected to be able to use the scroll wheel on my mouse (while pressing Ctrl) to be able to change the font size. This, however, does not work. I can use Ctrl + + and Ctrl + - but the scroll wheel would've been much nicer.

Expected Behavior

While pressing Ctrl the scroll wheel would change the font size in tmux sessions.

Actual Behavior

While pressing Ctrl the scroll wheel has no effect in tmux sessions.

Originally created by @fredrikaverpil on GitHub (Nov 12, 2021). ### Windows Terminal version (or Windows build number) 1.11.2921.0 ### Other Software WSL2: Ubuntu 20.04 LTS ZSH: 5.8 tmux: 3.0a-2ubuntu0.3 amd64 tmuxinator: focal 1.1.4-3 ### Steps to reproduce Using .tmux profile: ``` # enable mouse set -g mouse on set -g terminal-overrides 'xterm*:smcup@:rmcup@' # use zsh as the default shell set-option -g default-shell /bin/zsh ``` I would have expected to be able to use the scroll wheel on my mouse (while pressing Ctrl) to be able to change the font size. This, however, does not work. I can use <kbd>Ctrl</kbd> + <kbd>+</kbd> and <kbd>Ctrl</kbd> + <kbd>-</kbd> but the scroll wheel would've been much nicer. ### Expected Behavior While pressing <kbd>Ctrl</kbd> the scroll wheel would change the font size in tmux sessions. ### Actual Behavior While pressing <kbd>Ctrl</kbd> the scroll wheel has no effect in tmux sessions.
claunia added the Resolution-Duplicate label 2026-01-31 04:50:35 +00:00
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Reference: starred/terminal#15858
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