Ghostty + tmux mouse mode status window and pane clicks often require multiple clicks to register

[sameh0]

Issue Description

When running tmux inside Ghostty with mouse mode enabled, left-clicking tmux status-window
entries and left-clicking another tmux pane often requires multiple clicks before the action
takes effect.

In the same general tmux workflow, WezTerm feels reliable, but Ghostty often behaves as if the
click on mouse-down is missed or not acted on consistently.

I have not fully minimized my tmux config beyond the fact that tmux mouse mode is enabled, but
the issue appears tied to tmux mouse handling rather than Ghostty-native tabs/splits.

Expected Behavior

A single left click should reliably switch to the clicked tmux window in the status line and focus the clicked tmux pane

Actual Behavior

A single click is often ignored and it may take 2-3 clicks for the action to happen.

Reproduction Steps

1. Open Ghostty.
2. Start tmux with mouse mode enabled (set -g mouse on).
3. Create multiple tmux windows and panes.
4. Try clicking:
   • a tmux window in the tmux status line
   • another tmux pane to focus it

Ghostty Logs

No response

Ghostty Version

Ghostty 1.3.0

Version
  - version: 1.3.0
  - channel: stable
Build Config
  - Zig version   : 0.15.2
  - build mode    : .ReleaseFast
  - app runtime   : .none
  - font engine   : .coretext
  - renderer      : renderer.generic.Renderer(renderer.Metal)
  - libxev        : kqueue

OS Version Information

macOS 26.3.1

(Linux only) Display Server

None

(Linux only) Desktop Environment/Window Manager

No response

Minimal Ghostty Configuration

shell-integration = zsh
command = /bin/zsh --login --interactive
font-size = 16

Additional Relevant Configuration

tmux.conf with just set -g mouse on would do .

Workaround:

I can work around it from the tmux side by changing status switching to mouse-up and adding a
pane mouse-up fallback:

unbind -T root MouseDown1Status
bind -T root MouseUp1Status switch-client -t =
bind -T root MouseDragEnd1Status switch-client -t =

bind -T root MouseUp1Pane if-shell -F "#{||:#{pane_in_mode},#{mouse_any_flag}}" { select-pane -t
= ; send-keys -M } { select-pane -t = }



### I acknowledge that:

- [X] I have reviewed the FAQ and confirm that my issue is NOT among them.
- [X] I have searched the Ghostty repository (both open and closed Discussions and Issues) and confirm this is not a duplicate of an existing issue or discussion.
- [X] I have checked the "Preview" tab on all text fields to ensure that everything looks right, and have wrapped all configuration and code in code blocks with a group of three backticks (` ``` `) on separate lines.

[mitchellh]

Can you try tip? I think this is all resolved and is actually another casualty of: #11319

[sameh0]

Looks good upon first try, I'll keep using it today and report back
Thanks