Dear Surfers,

I am trying to launch tksurfer/tkmedit in the stable 5_0_0 environment in the Martinos network, but this fails with glut segmentation errors. FS version 6 tksurfer works on the same machine and data, but I need to create some figures that match version 5. We already tried with a different user and a few years older linux box, same issues. Any suggestions would be greatly appreciated! For example, is there a variable that we could set to point to an older OpenGL version? (My LD_LIBRARY_PATH has not been set, and my PATH does not include anything pointing to /usr/lib or /usr/lib64)

Details:

on machine rukki (locally at terminal):

setenv USE_STABLE_5_0_0 source /usr/local/freesurfer/nmr-stable50-env cd $MY_SUBJECTS_DIR

Checking version: freesurfer ... You are running this version of FreeSurfer: freesurfer-Linux-centos4_x86_64-stable-v5.0.0-20110319

echo $FREESURFER_HOME /usr/local/freesurfer/stable5_0_0

cp -r $FREESURFER_HOME/subjects/fsaverage $MY_SUBJECTS_DIR/. chmod -R 777 fsaverage

[rukki:sphsm10-ffx] (nmr-stable5.0-env) tksurfer fsaverage lh inflated

subject is fsaverage hemi is lh surface is inflated surfer: current subjects dir: <$MY_SUBJECTS_DIR> surfer: not in "scripts" dir ==> using cwd for session root surfer: session root data dir ($session) set to: surfer: <$MY_SUBJECTS_DIR> Reading image info <$MY_SUBJECTS_DIR>/fsaverage) Reading <$MY_SUBJECTS_DIR>/fsaverage/mri/orig.mgz surfer: Reading header info from /<$MY_SUBJECTS_DIR>/fsaverage/mri/orig.mgz [rukki:sphsm10-ffx] (nmr-stable5.0-env)

... after which there is no screen output. The file xdebug_tksurfer was generated:

[rukki:sphsm10-ffx] (nmr-stable5.0-env) more .xdebug_tksurfer

Segfault Initializing glut xDebug stack (length: 1) 00: 00: Initializing glut

Segfault Initializing glut [rukki:sphsm10-ffx] (nmr-stable5.0-env)

[rukki:sphsm10-ffx] (nmr-stable5.0-env) echo $DISPLAY :3

setenv DISPLAY :0 does not fix the issue (results in GLUT: Fatal Error in tksurfer.bin: could not open display: 0)

I also tried fsaverage4, fsaverage5, fsaverage6, and bert, copied from the same folder into my $SUBJECTS_DIR, same result.

The issue is not specific to tksurfer:

tkmedit -f fsaverage/mri/T1.mgz

=================================== ERROR: A segfault has occurred. This is not your fault, : but is most likely an unrecoverable error and has : made the program unstable. : : Please send the contents of the file .xdebug_tkmedit : that should be in this directory to freesurfer@nmr.mgh.harvard.edu : : Now exiting... : [rukki:sphsm10-ffx] (nmr-stable5.0-env)

more .xdebug_tkmedit tkmedit started: Wed Aug 7 16:54:21 2024

tkmedit.bin -f fsaverage/mri/T1.mgz

$Id: tkmedit.c,v 1.341.2.1 2010/08/04 20:47:28 greve Exp $ $Name: stable5_0_0 $ Set user home dir to ($MY_SUBJECTS_DIR) Set subject home dir to fsaverage/mri/T1.mgz

Segfault Importing volume with MRIread xDebug stack (length: 5) 04: Volm_ImportData( this=0x3447db0, isSource=./fsaverage/mri/T1.mgz ) 04: Importing volume with MRIread 03: LoadVolume( iType=0, isName=fsaverage/mri/T1.mgz, ibConform = 0 ) 03: Reading data into volume 02: ParseCmdLineArgs( argc=3, argv=tkmedit.bin ) 02: Loading volume fsaverage/mri/T1.mgz 01: main() 01: Parsing command line arguments 00: 00: [rukki:sphsm10-ffx] (nmr-stable5.0-env)

My OpenGL version: [rukki:sphsm10-ffx] (nmr-stable5.0-env) glxinfo | grep "OpenGL version" OpenGL version string: 4.6.0 NVIDIA 550.54.14 The other machine we tried had OpenGL version 4.6.0 NVIDIA 535.54.03

Thank you!

Best regards,

Tommi

--- Tommi Raij, MD, PhD Director, TMS Clinical Research MGH/MIT Athinoula A. Martinos Center for Biomedical Imaging Bldg 149, 13th st Charlestown, MA 02129