Dear Bruce, dear Kevin,

we have upgraded to Freesurfer 4.0.0. Now "doublebufferflag" does make a difference: if we set it to "1" and execute tksurfer bert lh pial we see a tiny sliver of the brain on the right hand side when running Freesurfer remotely on a Linux x86 system (Fedora Core 7, SunFire X2200). This seems to be independent of the X-Server we use (the same effect was observed using MacOSX, Linux32 and Solaris10). Without setting "doublebufferflag" tksurfer's window is not updated.

Is there something else we could try? Many thanks in advance, Stefan

Am 20.08.2007 um 15:17 schrieb Bruce Fischl:

sorry, I'll maybe Kevin can help

Bruce On Mon, 20 Aug 2007, Stefan Vollmar wrote:

...

Dear Bruce,

Am 20.08.2007 um 03:33 schrieb Bruce Fischl:

...

try this: setenv doublebufferflag 1 tksurfer ...

On the SunFire T2000 server (Solaris 10) I get:

[...] Loading /daten/share/opt/freesurfer/freesurfer/surface_labels.txt surfer: ### redraw failed: no gl window open surfer: single buffered window Window type not found! surfer: failed, trying double buffered window... [...]

resulting in a blank graphic's window.

We tried doublebufferflat=0 and doublebufferflat=1 but did not see any difference - and this is odd.

Using "env" after the tksurfer call we made sure that indeed this variable was correctly set. I assume, there should be a difference?

Many thanks in advance, Stefan