Image preview in ssh>tmux>yazi works, but tmux>ssh>yazi does not - Any suggestions?

[michaelrommel]

What system are you running Yazi on?

macOS

What terminal are you running Yazi in?

Ghostty or Wezterm

yazi --debug output

Yazi
    Version: 0.4.2 (5cfcab3 2024-12-20)
    Debug  : false
    Triple : x86_64-unknown-linux-gnu (linux-x86_64)
    Rustc  : 1.83.0 (90b35a62 2024-11-26)

Ya
    Version: No such file or directory (os error 2)

Emulator
    Brand.from_env      : None
    Emulator.detect     : Emulator { kind: Right(Unknown { kgp: false, sixel: true }), light: false, cell_size: Some((19, 48)) }
    Emulator.detect_full: Ok(Emulator { kind: Right(Unknown { kgp: false, sixel: true }), light: false, cell_size: Some((19, 48)) })

Adapter
    Adapter.matches: Sixel

Desktop
    XDG_SESSION_TYPE           : Some("tty")
    WAYLAND_DISPLAY            : None
    DISPLAY                    : None
    SWAYSOCK                   : None
    HYPRLAND_INSTANCE_SIGNATURE: None
    WAYFIRE_SOCKET             : None

SSH
    shared.in_ssh_connection: true

WSL
    WSL: false

NVIM
    NVIM          : false
    Neovim version: No such file or directory (os error 2)

Variables
    SHELL           : Some("/usr/bin/zsh")
    EDITOR          : Some("vim")
    VISUAL          : Some("vim")
    YAZI_FILE_ONE   : None
    YAZI_CONFIG_HOME: None
    YAZI_ZOXIDE_OPTS: None
    FZF_DEFAULT_OPTS: None

Text Opener
    default     : Some(Opener { run: "${EDITOR:-vi} \"$@\"", block: true, orphan: false, desc: "$EDITOR", for_: None, spread: true })
    block-create: Some(Opener { run: "${EDITOR:-vi} \"$@\"", block: true, orphan: false, desc: "$EDITOR", for_: None, spread: true })
    block-rename: Some(Opener { run: "${EDITOR:-vi} \"$@\"", block: true, orphan: false, desc: "$EDITOR", for_: None, spread: true })

Multiplexers
    TMUX               : 0
    tmux version       : 3.6
    tmux build flags   : enable-sixel=Supported
    ZELLIJ_SESSION_NAME: None
    Zellij version     : No such file or directory (os error 2)

Dependencies
    file          : 5.44
    ueberzugpp    : No such file or directory (os error 2)
    ffmpeg/ffprobe: No such file or directory (os error 2) / No such file or directory (os error 2)
    pdftoppm      : No such file or directory (os error 2)
    magick        : No such file or directory (os error 2)
    fzf           : 0.42.0
    fd/fdfind     : 8.7.0 / No such file or directory (os error 2)
    rg            : 13.0.0
    chafa         : No such file or directory (os error 2)
    zoxide        : No such file or directory (os error 2)
    7z/7zz        : No such file or directory (os error 2) / No such file or directory (os error 2)
    jq            : 1.6

Clipboard
    wl-copy/paste: No such file or directory (os error 2) / No such file or directory (os error 2)
    xclip        : No such file or directory (os error 2)
    xsel         : No such file or directory (os error 2)

Describe the question

I have the same tmux version with sixel enabled running locally on macOS and on the remote Linux server. If I ssh to the remote machine, start tmux and then yazi, image preview works. However, if I run tmux locally on macOS, then ssh into the remote machine and then run yazi, image preview does not work. I have tried different "tricks", like setting TERM_PROGRAM to tmux on the remote machine or setting an environment variable like GHOSTTY_RESOURCES_DIR to trick yazi into detecting the correct terminal, but nothing helps here.

I am trying to understand if that is something that cannot work or if I am doing s.th. wrong.

Anything else?

No response

Checklist

• I have searched the existing discussions/issues

[sxyazi]

Yazi uses TMUX and TMUX_PANE to detect if the user is in a tmux session, but these don't get sent over SSH:

yazi/yazi-adapter/src/mux.rs

Line 24 in 63eb82a

if !env_exists("TMUX_PANE") || !env_exists("TMUX") {

Maybe replacing them with TERM would be a better approach, as long as the user hasn't changed their tmux TERM from tmux-256color to something else, it should work.

Would you like to open a feature request for it, I can support it.

[sxyazi]

Done in #2229

[michaelrommel]

This is amazing! I wanted to look into setting the vars you mentioned, now you beat me even with a complete fix! I works absolutely find with Ghostty, tmux and ssh and all combinations thereof! Same with Wezterm! I wrote in the meantime a small plugin for previewing svg files on systems, where the imagemagick version is not up to date, like debian bookworm. I uses exiftool/identify for image size and rsvg-convert for getting the image. It lives at: http://github.com/michaelrommel/svg-preview.yazi but I still need to write a better README for the prerequisites etc.

Thanks again for the quick fix!!