On Tue, Feb 25, 2014 at 10:36:29AM -0800, David Wolfskill wrote: > ... > This morning, I found a message in my mailbox from such a preview run: > > | Error in .External2(C_X11, paste("png::", filename, sep = ""), g$width, : > | unable to start device PNG > | Calls: gen_build_histogram -> png > | In addition: Warning message: > | In png(filename = fn, height = height, width = width, units = "in", : > | unable to open connection to X11 display '' > | Execution halted > > [This was running R-3.0.2_1 in FreeBSD/amd64 9.2-STABLE > r262323M/262357:902506, built Sun Feb 23 05:14:37 PST 2014.] > ...
The above is no longer a problem. After a variety of approaches, I decided to rebuild the graphics/png, graphics/cairo, and all of the R-* ports on the machine. A summary: ===>>> The following actions were performed: Re-installation of png-1.5.18 Re-installation of cairo-1.10.2_7,2 Re-installation of R-3.0.2_1 Re-installation of R-cran-DBI-0.2.7_3 Re-installation of R-cran-RColorBrewer-1.0.5_11 Re-installation of R-cran-RMySQL-0.9.3_8 Re-installation of R-cran-colorspace-1.2.4_2 Re-installation of R-cran-dichromat-2.0.0_4 Re-installation of R-cran-digest-0.6.4 Re-installation of R-cran-iterators-1.0.6_7 Re-installation of R-cran-itertools-0.1.1_11 Re-installation of R-cran-plyr-1.8_5 Re-installation of R-cran-proto-0.3.10_5 Re-installation of R-cran-stringr-0.6.2_5 Re-installation of R-cran-reshape2-1.2.2_5 Re-installation of R-cran-munsell-0.4.2_2 Re-installation of R-cran-labeling-0.2_2 Re-installation of R-cran-scales-0.2.3_5 Re-installation of R-cran-gtable-0.1.2_5 Re-installation of R-cran-ggplot2-0.9.3.1_4 Re-installation of R-cran-zoo-1.7.10_2 ===>>> Exiting Folowing that, I trried running the script in an xterm without DISPLAY defined; it worked as it had before. As I type, I'm running it out of cron, and it's creating PNG files.... Evidently, I screwed up an update within the last few weeks, so my allegation that this was something that had changed in R was not true. I apologize if I mislead or offended anyone: I was wrong. And "thank you" again to those who tried to help. Peace, david (back to cloaked mode) -- David H. Wolfskill r...@catwhisker.org Taliban: Evil cowards with guns afraid of truth from a 14-year old girl. See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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