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When I'm running

evince file.pdf

I got this error

Failed to get bus connection: Could not connect: Connection refused

Ubuntu 12.04

I have to reboot. Can I repair this error without reboot?

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@don_crissti It's on my machine, yes under tmux. I have to wait until it begins again and tell you the result. – xralf Apr 5 '13 at 15:46
up vote 4 down vote accepted

This message indicates that the D-Bus daemon has died. You need to restart it. Run dbus-launch.

Perhaps the daemon is still running but not responding. If that's the case, kill it, then run dbus-launch.

If the environment variable DBUS_SESSION_BUS_ADDRESS is set, unset it. Most applications (I haven't checked about Evince) can find out the D-Bus address without it.

For more information, see Set environment variable for all of tmux shells when gnome-sessions gets restarted

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