Tunnelling X for R graphics
To answer your basic question, you do need to shut down everything involivng X, that is X11() devices and the X11 dataeditor. If you do that (and graphics.off() will suffice for the first), you should be able to re-open an X11 device on another display (which is what presumably a new VNC connection gives you). The warning comes from any X erorr, and it is not possible to know how serious it is without external information.
On Mon, 2 Feb 2009, Adam D. I. Kramer wrote:
On Tue, 3 Feb 2009, Patrick Connolly wrote:
The problem, and maybe I'm just whining here, is that because the data sets are large this takes several minutes where I'm basically just sitting around. This happens once every other day as the VPN software I'm using "times out" after about 24 hours and thus the ssh session dies.
Is it possible to do anything about the VPN software? I use tightVNC to do something similar and it doesn't time out after 24 hours. Even closing the desktop machine down altogether does not lose the ssh connexion. Restarting the desktop a week later will still find the X session without loss.
The VPN software is managed and maintained by the company I'm doing statistical computing work for...out of my control. Your comments about TightVNC are pretty impressive, though--I'm not really sure how that would work...though if you set your ssh connection to not push any data towards your computer, I gather the server would have no reason to believe you were unresponsive? In any case, this sadly doesn't help me, but many thanks! For now, I'm just trying my hardest to remeber to dev.off() when I'm done using graphics. --Adam
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