Window does not show up on vnc display
klavs "at" austin.ibm.com
Tue Jul 2 16:25:02 2002
Thanks for answering :-)
Yes, the application always fails to display, which by the way is
SANtricity Storage Manager client for FASt (Fibre Channel RAID manager). I
know it is not a security issue (since I ran xhost prior to running),
otherwise the program gives a long blurp, so that can not be the the case.
Likewise, if the app were tied to display :0, I would think it would
always pop up on my office screen, even when I run the the program in a
vncviewer on that same display. The lacking extensions sound more
plausible, though I get no peep from the program and it continues to run
probably waiting for some input from me in a window I cannot see... I was
actually planning on opening a defect on the program, but without any
specifics, it is kind of hard, since they will probably just claim that
the problem must be in vnc. Any ideas? Of course I could get hold of a
windoze SMclient, but I would hate to get my hand dirty, and it defies the
purpose of being able to do everything with vnc, which is such a great
tool, which has saved so many trips to the office in weekends and nights,
thank you guys :-)
From: =?iso-8859-1?Q?=22Beerse=2C_Corn=E9=22?= <cbeerse "at" hiscom.nl>
To: "'vnc-list "at" realvnc.com'" <vnc-list "at" realvnc.com>
Subject: RE: Window does not show up on vnc display
Date: Tue, 2 Jul 2002 11:07:40 +0200
Reply-To: vnc-list "at" realvnc.com
> -----Original Message-----
> From: klavs "at" austin.ibm.com [mailto:klavs "at" austin.ibm.com]
> I am running Xvnc (latest version) on an AIX box and usually
> logs in from
> home with linux to access the display. It works in most
> cases, but now and
> then I experience an application which does not show up on the vnc
> display, even with the DISPLAY variable set correctly, no
> error code comes
> and the program seem to be running fine, there is just no output being
> sent to the display. I have no problem sending the same application's
> output to another regular physical display on a different
> unix box, it is
> only vnc which refuses. It also won't show up if I am using
> the viewer on
> the physical screen itself, so it is not a network issue. It
> appears that
> it is mostly some java applications which causes problems. Heard about
> this problem before? Do you know of any workarounds? I saw you had a
> similar situation listed on your FAQ. Btw, I am using Java
> 1.3.0 Runtime
> Environment, which is fairly recent I believe.
Is it always the same application that never runs? Then it is the
application. I've seen some variants in this:
- Applications that need several X11 extentions that Xvnc does not handle.
The application should give a notice that it needs the extentions.
- Bad designed X11 applications that are hardcoded to display numbers :0
:0.0. That's not according to the X11 definition and this must be reported
as an error to the application.
- Not allowed to display. This is solved by removing the security from the
X11 server with `xhost +`. However, take care, now everyone can invoke
applications to that display, even display grabbers to grab your output.
details see the xhost man pages.