Clipper works when started manually, but not from unit file

[ebyrne242]

Clipper works when I start it manually, but from if I start it with the example unit file and the same config, it gives me an error when I try to copy to it (via unix socket).

$ systemctl --user start clipper
clipper: 2018/08/08 21:05:39 Starting UNIX domain socket server at /home/sketch/.ssh/clipper.sock
clipper: 2018/08/08 21:09:03 [ERROR] pipe copy: write |1: broken pipe
clipper: 2018/08/08 21:09:03 [ERROR] wait: exit status 1
clipper: 2018/08/08 21:09:03 Connection closed
[sketch@laptop ~]$ systemctl --user stop clipper
clipper: 2018/08/08 21:09:35 Got signal terminated
clipper: 2018/08/08 21:09:35 accept unix /home/sketch/.ssh/clipper.sock: use of closed network connection
[sketch@laptop ~]$ clipper
clipper: 2018/08/08 21:09:41 Starting UNIX domain socket server at /home/sketch/.ssh/clipper.sock
clipper: 2018/08/08 21:09:43 Echoed 4 bytes
clipper: 2018/08/08 21:09:43 Connection closed

[jeduardo]

@sketch242 this happens because clipper is using xclip underneath it and the DISPLAY environment variable in the unit file is most likely not matching your user display.

For example, this is the content of my DISPLAYenvironment variable:

$ echo $DISPLAY
:1

This is what is inside the unit file:

Environment=DISPLAY=:0

In my case I have changed :0 to :1 in the service unit file, ran a systemctl --user daemon-reload && systemctl --user restart clipper.service and I was then able to use clipper to inject data into the clipboard as expected.

[wincent]

Going to close this on the assumption that it is resolved.