tmux ignores the configuration files: both /etc/tmux.conf and ~/.tmux.conf. Even I pass the path to the configuration file, using tmux -f path/to/tmux.conf it still doesn't load it.

The configuration file contains:

set -g default-terminal "screen-256color"
set -g status-bg "#105C8D"
set -g status-fg white

set-window-option -g xterm-keys on

set -sg escape-time 0

I see that the status bar background is lightblue even the configuration sets it to dark blue (#105C8D). Also, 256 colors are not supported. That's why I guess the file is not loaded.

How can I fix the issue?

Running tmux version 1.9a but had the same issue with 1.8, on Ubuntu 14.04.

I already saw:

I don't get any errors regarding the config syntax.

  • What happens if you create a new tmux.conf file with the single line set -g status-bg "#105C8D" and run tmux -f tmux.conf ?
    – janos
    Dec 20, 2014 at 20:20
  • @janos I did the troubleshooting together with Cristian and we already tried this. The color is not changed... Dec 20, 2014 at 20:28
  • I have already tried to create a new tmux.conf and run tmux -f tmux.conf, but nothing has changed.
    – Cristian
    Dec 21, 2014 at 7:59

1 Answer 1


Found a solution... which is probably not the best, but its working.
Open tmux with: tmux -2 which force tmux to assume the terminal supports 256 colours.

  • Is this in gnome-terminal?
    – jasonwryan
    Dec 26, 2014 at 19:43
  • yes it is a gnome-terminal.
    – Cristian
    Dec 28, 2014 at 21:45

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