Using a second monitor, running R under Unix

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 screen.

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 ;).

Cheers,
Simon


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.