[R-SIG-Mac] Using a second monitor, running R under Unix

Simon Urbanek simon.urbanek at r-project.org
Wed Jan 17 16:55:30 CET 2007

Thanks, John.
This this should be now fixed in the R24-branch (e.g. fetch the  
installer from http://r.research.att.com tomorrow). It is a quick  
hack, legacy Quartz windows will now appear in the center of the main  

In general that device (Quartz in console R) is unsupported and will  
go away very soon, because it is a legacy from very old times and the  
API it uses is now deprecated and Apple will remove it from future OS  
X versions. We are working on a replacement device for R-devel, but  
it won't work in R 2.4.1, so stay tuned and I'll let you know when  
it's time to test the new beast ;).


On Jan 14, 2007, at 6:04 PM, John Maindonald wrote:

> I am using a MacBook Pro with Core 2 Duo, with an external screen
> connected that is set to appear above the MacBook Pro's screen.  The
> laptop's menu appear bar is set to appear at the top of the external
> monitor.
> When I run R under ESS, or from the Unix command line, and type quartz
> (), the graphics window appears to the "left" of the external
> monitor.  Hitting the F9 key brings it into view, but there seems no
> way to grab it with the mouse and move it onto less ephemeral real
> estate.  [Under R.app, all is well.]
> [With x11() half the window is off to the left, and I can drag it to
> anywhere I want (either screen).]
> A further issue is that when I plot anything on the quartz screen, I
> get an "error: message, thus:
>> quartz()
> Warning message:
> quartz() device interactivity reduced without an event loop manager
> in: quartz()
>> plot(1:5, 1:5)
> CGGStackRestore: gstack underflow.
> The "CGGStackRestore: gstack underflow" message looks ominous, but it
> does not cause evident problems.
> Is there something I can do so that the positioning of the second
> screen is recognized?  At some time in the past, I am sure that quartz
> () [ and x11()] used to correctly recognize the positioning of the
> screens.  However it is a while since I used quartz(), and I would
> not have paid too much attention to the x11() behaviour.
> John Maindonald
>> sessionInfo()
> R version 2.4.1 (2006-12-18)
> i386-apple-darwin8.8.1
> locale:
> C
> attached base packages:
> [1] "splines"   "stats"     "graphics"  "grDevices" "utils"
> "datasets"
> [7] "methods"   "base"
> John Maindonald             email: john.maindonald at anu.edu.au
> phone : +61 2 (6125)3473    fax  : +61 2(6125)5549
> Centre for Mathematics & Its Applications, Room 1194,
> John Dedman Mathematical Sciences Building (Building 27)
> Australian National University, Canberra ACT 0200.
> _______________________________________________
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> R-SIG-Mac at stat.math.ethz.ch
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