If you don’t have a license.txt file setup to read, then freeview will not run.

If you have not already done so, I would set the environment variable FS_LICENSE to point to the license.txt file you downloaded after registering, e.g., if license.txt is in your home directory and your user name is “cstevens” then

$ export FS_LICENSE=/Users/cstevens/license.txt

$ head -1 $FS_LICENSE

you@somewhere..com <—— email you used to register

You can put that define in your shell initialization file so you do not have to set it again when you login.

If you are doing long term work, we recommend you download and install the 7.4.1 release from June 2023. Those are Intel binaries, but they should run. You should use the standard Mac .pkg file. Right click on the .pkg file icon, select open with installer.app (default) which should provide some security exemptions.

June 2023 7.4.1 release

https://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/7.4.1/freesurfer-macOS-darwin_x86_64-7.4.1.pkg

There is a native Silicon Mac development build, but it is unstable and has not been tested as a full release has been. But if you are only running freeview, then you could try that instead. Install the same way as listed above by right clicking.

Development build

https://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/dev/freesurfer-macOS-darwin_arm64-dev.pkg

- R.

On Feb 17, 2024, at 22:09, Charles Leger <charlie.stevens.leger@gmail.com> wrote:

       External Email - Use Caution

Really. I have a Mac Mini M2 (16GB), 8 cores. I downloaded FreeSurfer
Mac OS 7.4.1.. Then tried freeview and loaded a T1 image. Freeview
immediately closed. I tried this 3 times with the same result. Perhaps
I should try a different version, ideally a version that allows CPU
rather than a GPU install.

Best,
C

On Sun, Feb 4, 2024 at 12:50 AM Fatima Karim <fatimakareem128@gmail.com> wrote:

       External Email - Use Caution

I have been using free surfer for a year nowon Mac m2 max and it's working fine.

On Sat, Feb 3, 2024, 23:42 Charles Leger <charlie.stevens.leger@gmail.com> wrote:

       External Email - Use Caution

There seems to be some contention if FreeSurfer will support Mac OS
silicon (M2, M3) computers. In the technical requirements section, it
is clearly specified that a " 3D graphics card with its own graphics
memory & accelerated OpenGL drivers" is required.. But in the email
archive (caution suggested) it is noted that "binaries should run on
current Macs with M1, M2, M3 arm64".

Currently. Apple has not indicated plans to support eGPUs, which, on
paper, makes all newer non-intel Mac computers not compatible with
FreeSurfer.

Any suggestions would be greatly appreciated.
--
*********************************************
Dr. Charles Stevens Leger
PhD Psychology, Neuroscience diploma
Department of Psychology
Concordia University
7141 Sherbrooke Street W.
Montreal, Quebec, Canada
H4B 1R6

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