How to enable scrolling in tmux panels with mouse wheel?

Origin Answer (deprecated)

Try this:

setw -g mode-mouse on

It can be used with the mouse-select-pane on and mouse-select-window on options.

Update

After tmux 2.1, mode-mouse option is no longer available. You should now use:

set -g mouse on

to capture mouse event.

For Mac OSX 10.9

First Install SimpleSIMBL

Then Install MouseTerm

Add this to your ~/.tmux.conf

set-option -g mouse-select-pane on
set-option -g mouse-select-window on
set-window-option -g mode-mouse on

For VIM Scrolling add this to your ~/.vimrc

set mouse=a
set ttymouse=xterm

Notes: see also: Scrolling inside Vim in Mac's Terminal

From https://blogs.oracle.com/samf/entry/smcup_rmcup_hate

In .tmux.conf:

set -g terminal-overrides 'xterm*:smcup@:rmcup@'

where, for instance, mouse scrolling in vim in tmux scrolls vim, NOT tmux history. Very beneficial, and VERY different from history scrolling.

There are some changes for Tmux 2.1

• Mouse-mode has been rewritten. There's now no longer options for:

  • mouse-resize-pane
  • mouse-select-pane
  • mouse-select-window
  • mode-mouse

  Instead there is just one option: 'mouse' which turns on mouse support entirely.

So set -g mouse on

Update:

I have to use this script to make scrolling work again: https://github.com/NHDaly/tmux-scroll-copy-mode