(PR#10379) Re: x11(....) kills R without DISPLAY

Hin-Tak Leung wrote:

Peter Dalgaard wrote:

brechbuehler at gmail.com wrote:

Full_Name: Christian Brechbuehler
Version: 2.4.1, 2.5.1, OS: Ubuntu GNU/Linux
Submission from: (NULL) (24.61.47.236)

<snipped>

Example (start R without DISPLAY from bash):
  % DISPLAY=3D R

 > x11("localhost:11.0")                        # this is my valid=20

DISPLAY
  Error: Couldn't find per display information
  %

<snipped>

 =20

I see this on Fedora 7 too. I suspect that the earlier report was=20
thought to be Mac specific.

<snipped>

I was experimenting with xvfb last week and didn't see the catatrophic =

problem like that, so I tried again. Is it possible that this has=20
already been fixed in R 2.6.0 ? (I am on fedora 7, x86_64 as well).

------------------------------------------
$ export -n DISPLAY

$ R
R version 2.6.0 (2007-10-03)
...

x11()

Error in X11(display, width, height, pointsize, if (is.null(gamma)) 1=20
else gamma,  :
  unable to start device X11
In addition: Warning message:
In x11() : unable to open connection to X11 display ''

q()

Save workspace image? [y/n/c]: n
$ export DISPLAY=3D
$ R
R version 2.6.0 (2007-10-03)
...

x11()

Error in X11(display, width, height, pointsize, if (is.null(gamma)) 1=20
else gamma,  :
  unable to start device X11
In addition: Warning message:
In x11() : unable to open connection to X11 display ''

q()

Save workspace image? [y/n/c]: n
--------------------------------------------------

You need x11() with a valid display to trigger the bug:

[pd at titmouse2 BUILD]$ ssh -Y 192.168.1.10
pd at 192.168.1.10's password:
Last login: Sat Oct 27 02:40:16 2007 from 192.168.1.11
[pd at janus ~]$ echo $DISPLAY
localhost:10.0
[pd at janus ~]$ DISPLAY=3D R -q

x11("localhost:10.0")

Error: Couldn't find per display information
[pd at janus ~]$ uname -a
Linux janus 2.6.22.9-91.fc7 #1 SMP Thu Sep 27 20:47:39 EDT 2007 x86_64=20
x86_64 x86_64 GNU/Linux
[pd at janus ~]$ cat /etc/issue
Fedora release 7 (Moonshine)
Kernel \r on an \m


--=20
  O__  ---- Peter Dalgaard             =D8ster Farimagsgade 5, Entr.B
 c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
(*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327=
918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)                  FAX: (+45) 35327=
907