[R-SIG-Mac] Lion and X11

[Simon Urbanek]

On Jan 28, 2012, at 1:46 PM, cstrato wrote:

> Yes, although I have started X11.app and run R from within an xterm I get:
> 
> > plot(1:8)
> No protocol specified
> Error in X11(d$display, d$width, d$height, d$pointsize, d$gamma, d$colortype,  :
>  unable to start device X11
> In addition: Warning message:
> In function (display = "", width, height, pointsize, gamma, bg,  :
>  unable to open connection to X11 display ''

Chances are that you DISPLAY is unset - you possibly messed with it in your startup files so R can't use X11 unless you give it the proper display. On a clean OS X you will see it set properly, e.g.:

> Sys.getenv("DISPLAY")
[1] "/tmp/launch-byCZTH/org.x:0"

Please check that your DISPLAY is set (and that you don't mess with R options, either). This is setting is automatic on SL/Lion.

Cheers,
Simon



> > sessionInfo()
> R version 2.14.1 (2011-12-22)
> Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
> 
> locale:
> [1] C
> 
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
> >
> 
> I have never had this problem on Snow Leopard, Leopard or Tiger!
> 
> Does someone have an idea what might be the reason?
> 
> Best regards
> Christian
> _._._._._._._._._._._._._._._._._._
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