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question asked: Dec 15 '09, 1:14 a.m.
question was seen: 10,405 times
last updated: Jun 14 '12, 12:40 p.m.

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Why needs RRC on Linux X Server running?

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Belinda Spachta (53●1●8●7) | asked Dec 15 '09, 1:14 a.m.
I can only start the RRC Server if my Putty Session has the Display variable set and on my PC the X-Server is running. Is this normal? RTC and RQM run without the mentioned variables, why cant RRC do the same?

In Catalina.out my error message says:
The application '<unknown>' lost its connection to the display localhost:10.0; most likely the X server was shut down or you killed/destroyed the application.

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Meik A Doell (61●5●1) | answered Dec 15 '09, 11:52 a.m.
Same problem here using Websphere. We cannot even put the startup of RRC into the init.d scripts! After server reboot, we need to manually (!) use a special maintenance-only terminal server connection to fire up RRC and then we can disconnect again.
Note: Not that any window would actually come up on the display... Seems that RRC just needs the handle...

The error message here is:
Exception in thread "SWT Display Thread" org.eclipse.swt.SWTError: No more handles
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Stef van Dijk (2.0k●1●7●9) | answered Dec 15 '09, 7:27 p.m.
FORUM MODERATOR / JAZZ DEVELOPER
As I understand it, this is due to the image conversions that are performed on the server for the web ui.

ETA: Just to further clarify, by image conversions I'm referring to the process by which artifacts such as sketches, storyboards, process diagrams, etc are rendered on the web.
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Belinda Spachta (53●1●8●7) | answered Dec 16 '09, 6:07 a.m.
Hello, solved the problem for me, we have an Xvfb running so i set the Display variable in the server.startup file to the Xvfb display and now it works. Thanks for your replies.

belinda
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Stef van Dijk (2.0k●1●7●9) | answered Dec 17 '09, 8:30 p.m.
FORUM MODERATOR / JAZZ DEVELOPER
Yes, sorry. There is a technote that describes this case:
http://www-01.ibm.com/support/docview.wss?rs=3499&context=SSWMEQ&q1=RN2.0&uid=swg21410023&loc=en_US&cs=utf-8&lang=en
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Meik A Doell (61●5●1) | answered Dec 21 '09, 8:59 a.m.
Wow, thanks a million for the link to that technote!
That will solve the problem for us as well!!!
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Erik Jägervall (73●7●10) | answered Jun 14 '12, 9:41 a.m.
Does anyone knows if this problem also concerns Rational Design Management 4.0. We are experiencing similar problems there....
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Robin Bater commented Jun 14 '12, 12:40 p.m.
JAZZ DEVELOPER

I don't know, but given that DM is converting models to images, I suspect there is a chance that could be the same problem.

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