Running i3wm on a Lenovo Thinkpad E570. Everything else typically works just fine. However, pressing the Fn key instantly kills Firefox (if open), all tray icons, and dunst. Some notes:

  • There is nothing in my .config/i3/config that relates to XF86WakeUp (which Fn maps to, for some reason).
  • This problem does not occur when using KDE (i.e. this problem seems related to i3wm, not Xorg/Wayland).
  • Once this crash has happened, these apps can be reopened and are then no longer affected.
  • I've also had issues with opening some apps such as Dolphin, which shows the following error when opened in a terminal:

"Session bus not found\nTo circumvent this problem try the following command (with Linux and bash)\nexport $(dbus-launch)"

  • I can then use export $(dbus-launch) to run it from the terminal, but it only applies to the terminal session; running this command from dbar also has no effect. Could this be a related problem? This only happens after the crash.

Any insights into strange i3 or dbus behavior?


I looked to see if there were any alternative or supplementary dbus packages, and found dbus-x11 in Manjaro's core repository. Upon installing that (which replaced the normal dbus package), both the crashing error and the problem with Dolphin are no longer occurring.

As such, I'm inclined to believe that I simply had the wrong version of dbus installed! Problem solved. :)


I'm using archlinux, yaourt install dbus-x11 (aur development) replace the previous dubs also works well.

  • Pacman was actually just fine, and in fact I'd recommend using yay instead of yaourt; the latter is deprecated and is no longer being developed. – diplomaticDeveloper Dec 14 '18 at 3:36

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