[winswitch] xpra-0.17.0 on Centos 7

[Bob Tennent]

 >|> It seems the problem is that the remote system is running
 >|> Centos-6. If I do
 >|>   sudo mkdir -p /run/user/500
 >|On the server I assume?
 >|500 being the uid of the user that starts the xpra server?

Yes and yes.

 >|> and set XDG_RUNTIME_DIR to /run/user/500
 >|How? On the client or server?
 >|Please post the command lines used.

  setenv XDG_RUNTIME_DIR /run/user/500

or 

  setenv XDG_RUNTIME_DIR $HOME/.xpra  

in the user's .cshrc (user uses tcsh).

Without 

  setenv XDG_RUNTIME_DIR ...

an xpra attach command fails with

  XDG_RUNTIME_DIR: Undefined variable.

and a python Traceback.

Bob T.