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Salome-Error in Geometry Module

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16 years 9 months ago #1414 by Sunil
Salome-Error in Geometry Module was created by Sunil
I just installed CAELinux2007 on my hard disk and tried to use Salome. The moment I select Geometry in the GUI, I get a message
SIGSEGV : Segmentation violation detected Adress 4

I also want to add that everything works fine in the livecd mode. Any help would be really apprciated!
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16 years 9 months ago #1415 by Sunil
Replied by Sunil on topic Re:Salome-Error in Geometry Module
Found the answer in your French Forum. Changed the graphic driver. Problem resolved.:)
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16 years 9 months ago #1416 by Joël Cugnoni
Replied by Joël Cugnoni on topic Re:Salome-Error in Geometry Module
Congratulation!!

Just to document this error for others:

if you get a SIGSEGV error when starting GEOM module of Salome, this means that GLX (OpenGL for X window) does not work properly, i.e. you cannot use 3D rendering.

This is usually caused by a problem / limitation in the graphic driver. To diagnose this, try to run "glxgears" in a terminal: if it crashes, this means that GLX does not work properly. The most common cause of this problem that when you use a "framebuffer" based graphic driver, GLX rendering is not supported.

To solve this issue, try to change your graphic driver in PcLinuxOs Control Center, and select for example the "VESA" driver (which supports GLX correctly!!). Or install a proprietary 3D driver for Nvidia or ATI cards.

Joël Cugnoni - a.k.a admin
www.caelinux.com
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15 years 8 months ago #2353 by paul chang
Replied by paul chang on topic Re:Salome-Error in Geometry Module
I am using Salome-Meca-2008.1 in Ubuntu 8.10, and trying go through the example in this link: caelinux.com/CMS/index.php?option=com_co...;id=15&Itemid=40. When I proceeded to the Creat Group (2) in Mesh module, I came across a Segmentaion Violation. I am using NVIDIA 6800 GT video card, and the proprietary driver.

Any help will be greatly appreciated. (what more information should I provide?)

Thanks in advance.
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15 years 3 months ago #2814 by Michal Abramowicz
Replied by Michal Abramowicz on topic Re:Salome-Error in Geometry Module
Hi!

Nice software but I have problem, at work I use laptop with intel gfx,
glxgears works, gives about 600FPS,but salome crash.

I load tutorial assembly, at top nav bar I select Geometry and got this:
>>> *** glibc detected *** SALOME_Session_Server: free(): invalid next size (normal): 0x08854ff8 ***

But, on nvidia with nvidia GLX salome is working well :-)

Maybe you use something nasty from GLX/Nvidia and it is not
working with Mesa and intel graphics ?
I don't know what to do with my laptop, maybe I should change it and
buy new one with NV gfx :(

Regards!

ps: very nice soft, I wait some Y for this and now I can't use it on my hp nx7300 :(
ps 1: salome 4.1.4
ps 2: sometimes when I load assembly, set MESH, and after this Geometry works, but ...1 on 10x try ..<br /><br />Post edited by: Michal Abramowicz, at: 2009/04/15 16:47
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