Hi all
i'm experiencing problems running blender 2.5 on linux
i get

Code:

Blender 2.52 (sub 0) Build Build: "2010-03-09" "16:58:31" "linux2" "dynamic" argv[0] = ./blender argv[1] = -d read file   Version 251 sub 0 ordered  OBCube  OBLamp  OBCamera Segmentation fault

in both precompiled and freshly built-from-svn versions
what could be the problem?

Hi,

I experience the same problems (Ubuntu 64-bit) as described by first poster; both for the svn version (currently svn 27780) and for the 2.50 alpha 2 downloaded from blender.org.

The program starts, I see the window being built (window border, top window where 'Blender' is written and the min-max-close buttons. Then the Segmentation fault comes in.

When I run the svn-compiled file with gdb, I get the following:
$gdb ./blender
(gdb) start
Temporary breakpoint 1 at 0x6c8ca0
[Thread debugging using libthread_db enabled]
(...)
Temporary breakpoint 1, 0x000000000006c8ca0 in main()

(gdb) continue
Continuing.

Program received signal_SIGSEGV, Segmentation Fault.
0x00000000000e316a6 in GHOST_SetTitle ()

(gdb) backtrace
#0 0x0...0e316a6 in GHOST_SetTitle ()
#1 0x0...06cac50 in wm_windows_title ()
#2 0x0...06cb607 in wm_window_add_ghostwindows()
#3 0x0...06d62f4 in WM_check ()
#4 0x0...06d77c0 in WM_read_homefile ()
#5 0x0...06cbbac in WM_init ()
#6 0x0...06c8e1a in main ()

(gdb) quit

Any ideas?

Update:

this appears not to be a Blender-related issue.

I noticed as of this afternoon, Compiz is not working and cannot be activated. The pre-compiled blender 2.50 alpha2 is working fine on an older version of Ubuntu.

I upgraded a bunch of Xserver and GTK+ packages after lunch - this is when my Compiz stopped working and Blender most likely also... Will look into fixing that...

Occasionally, development versions of Blender have problems with the startup file. Try deleting the .B25.blend file in your home directory.

Also worth noting if there are display problems - Compiz (and compositing window managers, in general) often have problems with OpenGL applications like Blender. Turning off Compiz/Aero/KDE4 desktop effects often helps.

[SOLVED] @stiv: your remark made me check whether the 'glxgears' program was working; it's a nice indicator if my video card is set up correctly. 'glxgears' was not working.

So, I booted into console mode; uninstalled and re-installed the binary NVidia driver I was already running (195.36.15) from command line. After reboot, openGL works again, Compiz and Blender 2.5 and all. Great!

today i updated from svn
just the same picture
compiz is off on my system i believe, cause there are no window-effects or smth like that
glxgears work nice

1) delete your ~/.B25.blend

2) run blender in the debugger to see where it is crashing

the .B25.blend was not there, maybe because i had never successfully run blender on this OS installation.

Code:

(gdb) run Starting program: /home/cd/Загрузки/blender/install/linux2/blender [Thread debugging using libthread_db enabled] Program received signal SIGSEGV, Segmentation fault. 0x00eb7f8d in ?? () from /lib/ld-linux.so.2

Code:

(gdb) backtrace #0  0x00eb7f8d in ?? () from /lib/ld-linux.so.2 #1  0x00ebc326 in ?? () from /lib/ld-linux.so.2 #2  0x00ec1fc0 in ?? () from /lib/ld-linux.so.2 #3  0x08580212 in GPU_state_init () #4  0x082bc50c in wm_window_add_ghostwindows () #5  0x082b2560 in WM_check () #6  0x082c1973 in WM_read_homefile () #7  0x082c442a in WM_init () #8  0x082b0ec3 in main ()

actually i'm not yet very familiar with debugging process, what some other useful information can i pull out here? just give me a hint.

stiv wrote:

1) delete your ~/.B25.blend 2) run blender in the debugger to see where it is crashing

I did this and now it works fine.

i still have no success in running even the latest svn version 252 sub 5
the output is just hte same as in my first post

Can you run other OpenGL applications like glxgears?

yes, glxgears works fine

http://www.blender.org/forum/viewtopic.php?t=17632
Hope it helps.

I've got still no success running the latest SVN.
I can build with no errors but when i run i get the same segmentation fault as described above.

This part looks like the culprit:

Quote:

#3 0x08580212 in GPU_state_init ()

If you are compiling blender yourself, build it debug and you can see exactly where in the source code it is failing. It appears to be graphics related.