Dorit,

Which OS are you using? How is the X-server configured?

The solution to the problem posted by Jenifer (the error message 'Could not find a decent visual') was to change the color depth from the 16bits to 24bits in the /etc/xorg.conf file.

What error message is issued when it can't read the .dat file?

Nick

On Wed, 2008-07-30 at 16:17 +0200, Dorit Kliemann wrote:

Dear all,

I wanted to open qdec for the first time and experienced an error that was posted some days ago... ( RE: [Freesurfer] qdec ERROR: Rendering vtkXOpenGLRenderWindow ; Juranek, Jenifer )

" ERROR: In /usr/pubsw/packages/vtk/5.0.4/src/VTK/Rendering/vtkXOpenGLRenderWindow.cxx, line 219 vtkXOpenGLRenderWindow (0x49220f0): Could not find a decent visual"

In contrast to the previously reported incident, I was finally able to open qdec by just clicking 'ok' on 3 of those exact same error messages. Still - I could not read in any .dat files.....

I tried to follow the advice given in the previous threat

" In the file /etc/X11/xorg.conf, within the section titled Section "Module", make sure this line exists:

Load "glx"

You might need to have your administrator perform this change, as it requires root access. You will have to restart your X server after making this change (Ctrl-Bksp)."

..but I don’t have the referred file in the X11 folder (xorg.conf).

FYI, I’m using the latest Freesurfer version and for a colleague of mine qdec works without having that xorg.conf file..... It is possible that there is any other reason for the qdec error?

Thanks, Dorit _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer