On my Linux computer I have the following .tmux.conf file:

# Enable mouse mode (tmux 2.1 and above)
set -g mouse on

This allows me to scroll up and down using the mouse wheel while in a tmux session.

If I use Ubuntu on Windows (WSL) to ssh to my Linux computer, this still works fine. I can tmux attach to the session and scroll up and down using my mouse just fine. I can also see the entire history of the tmux session (up to the maximum scrollback limit), but I can't see the ssh command or the tmux attach:

Notice I'm able to scroll back all the way to the start of the session, but the ssh and tmux attach commands don't appear.

However, this fails if I use a MobaXterm WSL-Ubuntu session. I start a WSL-Ubuntu session and use the same commands, but now the scroll wheel just fills in the last command, rather than scrolling up:

Additionally, if I scroll up using MobaXterm's scrollbar on the right, I can still see the outside history, and not the session history:

The regular tmux Ctrl+BPgUp scrolls through the session history just fine even in MobaXterm though.

How do I get the behaviour from the Linux/WSL terminal in my MobaXterm WSL-Ubuntu session?

1

1 Answer

You can try to set the Run method of wsl to 'Native connector' and add

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

to ~/.tmux.conf.

See Archlinux: Tmux#Scrolling_issues for more details.

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