mouse wheel isn't scrolling in tmux

Question

It scrolls ok in vim but not in tmux.

I followed suggestions like adding

set -g history-limit 1000
set -g terminal-overrides 'xterm*:smcup@:rmcup@'
setw -g mode-mouse on
set-window-option -g mode-mouse on

to .tmux.conf but none of them helped

All I get, regardless of the above is history command scrolling.

Answer 1

Correct command is:

set -g mode-mouse on

You can also add it to your ~/.tmux.conf

Answer 2

Just to link two relevant answers together:

Why does tmux set -g mouse-mode on no longer work?

As pointed out in this answer, the option got renamed since tmux version 2.1 to:

tmux set -g mouse on

To find your local tmux version, just run tmux -V.

Answer 3

set -g mouse on

Just like this if it's going in your ~/.tmux.conf