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Hi,
thanks. I just get an segmentation fault in the terminal.
The syslog says:
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
Does that provide any clue?
How can it be that freeview started like a charm and now gives a seg fault just after having tried to increase the font size by 2,
and that this persists even with a fresh installation?
Cheers,
Andreas
Am 30.06.26 um 22:51 schrieb fsbuild:
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The freesurfer install and/or the freeview application may not be an issue. If you are using NVIDIA graphics drivers instead of the systemX.org http://secure-web.cisco.com/1_p7-hMQcAorIxvps_E5ed3zDvVeF7QRwg3S7mvPOtwqaMzoRqQJOWCjQqcM4qQ1vSPHXdZY7Hie-WAVknVEOdxsMo4qslp6LDm9SyGEVYJSQMYwd3wzY9-ynBlO0TzjbvU5ZmwAnBRU1pdpYwN8Cmn4onaRiBLQUmwd1vZ2DyuvanNWiLOPp7f0cza2d58LcP8EBEb2ViNgQkmeSYFVViyttZDoTh3BEtSKA-5AhdsfJNjRaaDjJkQzG-LFmXTZTU401bo0mNsESWjjxJZvzUzf6G1RB5PYxMM4kl_0lUj6ZSxdsCke9dJ7nse8gYUMYZe5IbTaWQzANNPd35_ftEQ/http%3A%2F%2Fx.org%2F drivers, then it might be that changing graphics setting in an X-windows application like freeview may not work for every possible setting you can choose in the application. I see quite a few postings online about X-windows applications having graphics/font scaling issues on Ubuntu24 depending upon how the system is setup. If there is no error displayed in the terminal session, you could look in the system log /var/log/syslog to see if there is any graphics related errors listed there.
-R.
On Jun 30, 2026, at 15:47, 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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