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Just the segmentation fault.

cat  /var/log/syslog
gives

2026-07-01T09:21:33.655369+02:00 knorke kernel: freeview[8000]: segfault at 20 ip 00007097ff503afd sp 00007ffe90edef78 error
4 in libQt5Core.so.5.15.13[303afd,7097ff28e000+336000] likely on CPU 15 (core 27, socket 0)
2026-07-01T09:21:33.655393+02:00 knorke kernel: Code: 29 3d 0d 00 48 89 17 c3 0f 1f 44 00 00 f0 83 01 01 c3 90 66 2e 0f 1f 8
4 00 00 00 00 00 f3 0f 1e fa 48 8b 4f 08 83 e6 01 01 f6 <0f> b6 51 20 89 d0 83 e2 fd d0 e8 09 f2 88 51 20 83 e0 01 c3 90 66
2026-07-01T09:21:33.727669+02:00 knorke konsole[7990]: qt.core.qobject.connect: QObject::disconnect: Unexpected nullptr para
meter

Is that useful?

I just don't get why freeview started like a charm and now gives a seg fault just after having tried to increase the font size by 2,

and why this persists even with a fresh installation...

Cheers,

Andreas

Were there any error messages in the terminal?

Ruopeng

On Jun 30, 2026, at 3:47 PM, Andreas Bartsch <bartsch@radvisory.net> wrote:

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Hi,

I had sucessfully installed freesurfer 8.2.0 on Ubuntu 24.04 LTS Noble Numbat.

Freeview was running.

I then changed the font size under preferences from 12 to 14.

Since then, I am getting a segmentation fault when I want to run freeview.

I even did

sudo apt purge freesurfer
sudo apt install ./freesurfer_ubuntu24-8.2.0_amd64.deb
sudo FREESURFER_HOME=/usr/local/freesurfer/8.2.0 bash fs820_updates.sh

for a fresh clean re-installation but am still getting a crash of freeview whenever I am trying to start it.

Any remedy?

Cheers,

Andreas

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