Crash when creating colorimeter correction

[grishi]

Describe the bug
Consistent repeated crashes when creating colorimeter correction after profiling both instruments.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Tools/Correction/Colorimeter Correction'
2. Profile both Spectro and Colorimeter
3. Click on 'Create colorimeter correction...'
4. Fill in information
5. Click "OK"
6. DisplayCal crashes completely.

displaycal-fault.log output

Fatal Python error: Segmentation fault

Thread 0x000070cdd92006c0 (most recent call first):
  File "/usr/lib/python3.12/socket.py", line 295 in accept
  File "/usr/lib/python3.12/site-packages/DisplayCAL/wxwindows.py", line 1024 in connection_handler
  File "/usr/lib/python3.12/threading.py", line 1012 in run
  File "/usr/lib/python3.12/threading.py", line 1075 in _bootstrap_inner
  File "/usr/lib/python3.12/threading.py", line 1032 in _bootstrap

Current thread 0x000070cdf7b0eb80 (most recent call first):
  File "/usr/lib/python3.12/site-packages/DisplayCAL/wxwindows.py", line 4047 in __init__
  File "/usr/lib/python3.12/site-packages/DisplayCAL/display_cal.py", line 13908 in create_colorimeter_correction_handler
  File "/usr/lib/python3.12/site-packages/wx/core.py", line 2262 in MainLoop
  File "/usr/lib/python3.12/site-packages/DisplayCAL/display_cal.py", line 20052 in main
  File "/usr/lib/python3.12/site-packages/DisplayCAL/main.py", line 537 in _main
  File "/usr/lib/python3.12/site-packages/DisplayCAL/main.py", line 550 in main
  File "/usr/bin/displaycal", line 6 in <module>

Extension modules: wx._core, wx._grid, wx._xml, wx._xrc, wx._adv, wx._dataview, gi._gi, cairo._cairo, gi._gi_cairo, DisplayCAL.lib64.python312.RealDisplaySizeMM, wx._html, numpy._core._multiarray_umath, numpy.linalg._umath_linalg (total: 13)

Versions (please complete the following information):

• OS: Arch Linux
• Python Version: 3.12.7
• ArgyllCMS Version: 3.3.0
• DisplayCAL Version: 3.9.12
• Meters: i1 Pro, i1 DisplayPro

[eoyilmaz]

Can you try it with DisplayCAL 3.9.14 please. Also what version of wxPython are you using? Anything before wxPython 4.2.2 is not working properly with Python 3.12, fyi.

[grishi]

Thank you for your help. The wxPython version installed is 4.2.2
Installed DisplayCal3.9.14 through PyPI, it also crashes. Terminal and displaycal-fault.log output as shown:

Terminal:

Working directory:
/
tmp/
DisplayCAL-knnqw0ag/

Command line:
/usr/bin/ccxxmake
-E
'Xiaomi G Pro 27 (i1 Pro)'
-I
'G Pro 27'
-t
5
-f
reference.ti3,colorimeter.ti3
correction.ccmx

Writing CCMX file 'correction.ccmx' succeeded
ccxxmake exitcode: 0
DisplayCAL: Warning - could not find white - dE calculation will be inaccurate
DisplayCAL: Warning - could not find white - dE calculation will be inaccurate
DisplayCAL: Creating matrix using four-color method
DisplayCAL: Correction matrix is:
1.038132 0.028869 -0.014472
0.024570 0.980859 -0.003164
0.002580 0.001227 0.967884
Segmentation fault (core dumped)

displaycal-fault.log

Fatal Python error: Segmentation fault

Thread 0x000074e2a1e006c0 (most recent call first):
File "/usr/lib/python3.12/socket.py", line 295 in accept
File "/home/grishi/venv-displaycal/lib/python3.12/site-packages/DisplayCAL/wxwindows.py", line 1027 in connection_handler
File "/usr/lib/python3.12/threading.py", line 1012 in run
File "/usr/lib/python3.12/threading.py", line 1075 in _bootstrap_inner
File "/usr/lib/python3.12/threading.py", line 1032 in _bootstrap

Current thread 0x000074e31c4afb80 (most recent call first):
File "/home/grishi/venv-displaycal/lib/python3.12/site-packages/DisplayCAL/wxwindows.py", line 4047 in init
File "/home/grishi/venv-displaycal/lib/python3.12/site-packages/DisplayCAL/display_cal.py", line 13931 in create_colorimeter_correction_handler
File "/home/grishi/venv-displaycal/lib/python3.12/site-packages/wx/core.py", line 3427 in
File "/home/grishi/venv-displaycal/lib/python3.12/site-packages/wx/core.py", line 2262 in MainLoop
File "/home/grishi/venv-displaycal/lib/python3.12/site-packages/DisplayCAL/display_cal.py", line 20101 in main
File "/home/grishi/venv-displaycal/lib/python3.12/site-packages/DisplayCAL/main.py", line 537 in _main
File "/home/grishi/venv-displaycal/lib/python3.12/site-packages/DisplayCAL/main.py", line 550 in main
File "/home/grishi/venv-displaycal/bin/displaycal", line 6 in

Extension modules: wx._core, wx._grid, wx._xml, wx._xrc, wx._adv, wx._dataview, _dbus_bindings, _dbus_glib_bindings, DisplayCAL.lib64.python312.RealDisplaySizeMM, wx._html, zeroconf._utils.time, zeroconf._dns, zeroconf._protocol.outgoing, zeroconf._protocol.incoming, zeroconf._cache, zeroconf._record_update, zeroconf._history, zeroconf._updates, zeroconf._services, zeroconf._utils.ipaddress, zeroconf._services.info, zeroconf._services.registry, zeroconf._handlers.answers, zeroconf._handlers.multicast_outgoing_queue, zeroconf._handlers.query_handler, zeroconf._handlers.record_manager, zeroconf._listener, zeroconf._services.browser, charset_normalizer.md, requests.packages.charset_normalizer.md, requests.packages.chardet.md, google._upb._message, numpy._core._multiarray_umath, numpy.linalg._umath_linalg (total: 34)

[greenpenguins]

I got this same error as you a few days ago, also on Arch running the same versions of software. I run KDE and it only happens on wayland session. If I login using the KDE x11 session this error doesn't happen and calibration is able to fully complete.