The AMDVLK driver, all versions until v2024-Q4.2 from December 2024, had another bug which can cause crashes with those symptoms if the connected monitor supports more than 64 video modes. Psychtoolbox 3.0.19.15 introduced yet another workaround for this problem, substantially refined in the initial Psychtoolbox 3.0.20.0 release from mid-December 2024. As your Psychtoolbox is from NeuroDebian, and they are currently way behind - at Psychtoolbox 3.0.19.14, your Psychtoolbox does not contain workarounds for these AMDVLK driver bugs.
That is why it is required to always upgrade to the very latest Psychtoolbox before reporting a problem, and generally a good idea to do so. Also a good idea to follow our release announcements, which described the issue and solution. So if you have v3.0.20.0 or later of PTB or v2024-Q4.2 or later of AMDVLK then this problem should go away, unless it is indeed a different new problem.
See original bug report:
Note that the kind of questions you ask would normally require a paid support membership, and in fact the support costs have substantially exceeded over 1000 Euros by now, but I trust you already bought or will buy a Psychtoolbox software subscription license soon, so I’m provided this advice in good faith.
Best,
-mario