[Orgmode] [babel] sreen : unable to run org-babel-screen-test

[bluedian]

Hi,

When running "org-babel-screen-test", a xterm appear with its prompt, but no
message appear. Emacs hangs and my cpu is à 100%.

When hitting c-G (whit debug mode activated), I get this message :
Debugger entered--Lisp error: (quit)
  (not (file-readable-p tmpfile))
  (while (not (file-readable-p tmpfile)) (format "org-babel-screen: File not
readable yet."))
  (let* ((session "org-babel-testing") (random-string ...) (tmpfile
"/tmp/org-babel-screen.test") (body ...) process tmp-string)
(org-babel-execute:screen body org-babel-default-header-args:screen) (while (not
...) (format "org-babel-screen: File not readable yet.")) (setq tmp-string
(with-temp-buffer ... ...)) (delete-file tmpfile) (message (concat
"org-babel-screen: Setup " ...)))
  org-babel-screen-test()
  call-interactively(org-babel-screen-test)
  (unwind-protect (call-interactively chosen) (smex-rank chosen)
(smex-show-key-advice chosen))
  (let ((chosen ...)) (unwind-protect (call-interactively chosen) (smex-rank
chosen) (smex-show-key-advice chosen)))
  smex()
  call-interactively(smex nil nil)

In the * message * buffer, I get this :
Sending source code block to interactive terminal session...
Warning: Tried to connect to session manager, None of the authentication
protocols specified are supported
Entering debugger...

the last sentence "None of the authentication protocols specified are supported"
is surely the key, but I didn't understand it as I have xterm, sh and screen
installed and correctly configurated.

I'm on Ubuntu 9.04 - Jaunty Jackalope, Emacs 23, the last (this morning)
org-mode version on the git repository (I use org-track-update).

Other parts of babel are correctly working (shell and emacs mode without the
screen part)