Ubuntu studio 18.10 & displaycal_3.7.1.4-1

[dim162]

I have upgraded to displaycal_3.7.1.4-1 in the ubuntu studio 18.10 & displaycal doesn’t start. In the bash, i have: ” Traceback (most recent call last):
File “/usr/bin/displaycal”, line 4, in <module>
from DisplayCAL.main import main
ImportError: No module named DisplayCAL.main”

[diehard67]

I did this and sorta got it to work

ubuntu 18.10 desktop

cd /usr/lib/python2.7/

sudo ln -s /DisplayCAL DisplayCAL

now if I can just get a solution to this….

diehard@silverbox:/usr/lib/python2.7$ displaycal
XDG: [Errno 2] No translation file found for domain: xdg-user-dirs
displaycal 3.7.1.4 2019-01-24T14:57:02.599726Z
Ubuntu 18.10 cosmic x86_64
Python 2.7.15+ (default, Oct 2 2018, 22:12:08)
[GCC 8.2.0]
ImportError: No module named faulthandler
wxPython 3.0.2.0 gtk3 (classic)
Encoding: UTF-8
File system encoding: UTF-8
Connection to 127.0.0.1:15411 failed: [Errno 111] Connection refused
Starting up…
SDL2: libSDL2-2.0.so.0
SDL2_mixer: libSDL2_mixer-2.0.so.0
Audio module: SDL 2.0
Enumerating display devices and communication ports…
/usr/bin
ArgyllCMS 2.0.1
…ok.
Checking video card gamma table access for display 1…
Dispwin: Warning – new_dispwin: Expected VideoLUT depth 8 doesn’t match actual 10
VideoLUT has 1024 entries, interpolating to 256
Dispwin: Warning – new_dispwin: Expected VideoLUT depth 8 doesn’t match actual 10
Dispwin: Warning – new_dispwin: Expected VideoLUT depth 8 doesn’t match actual 10
Verify: ‘test.cal’ IS loaded (discrepancy 0.0%)
Dispwin: Warning – new_dispwin: Expected VideoLUT depth 8 doesn’t match actual 10
…ok.
Initializing GUI…

wx._core.PyAssertionError: C++ assertion “cr && cairo_status(cr) == 0” failed at ../src/gtk/bitmap.cpp(1306) in CairoCreate():

Traceback (most recent call last):
File “/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/_core.py”, line 16765, in <lambda>
lambda event: event.callable(*event.args, **event.kw) )
File “/usr/lib/python2.7/DisplayCAL/DisplayCAL.py”, line 15500, in setup_frame
app.frame = MainFrame(self.worker)
File “/usr/lib/python2.7/DisplayCAL/DisplayCAL.py”, line 1383, in __init__
self.setup_language()
File “/usr/lib/python2.7/DisplayCAL/DisplayCAL.py”, line 1933, in setup_language
BaseFrame.setup_language(self)
File “/usr/lib/python2.7/DisplayCAL/wxwindows.py”, line 1866, in setup_language
child.Label = translated
File “/usr/lib/python2.7/DisplayCAL/wxwindows.py”, line 4694, in fset
self.SetLabel(label)
File “/usr/lib/python2.7/DisplayCAL/wxwindows.py”, line 4765, in SetLabel
bmp = fancytext.RenderToBitmap(self._label, background)
File “/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/lib/fancytext.py”, line 358, in RenderToBitmap
dc.SelectObject(bmp)
File “/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/_gdi.py”, line 5179, in SelectObject
return _gdi_.MemoryDC_SelectObject(*args, **kwargs)
PyAssertionError: C++ assertion “cr && cairo_status(cr) == 0” failed at ../src/gtk/bitmap.cpp(1306) in CairoCreate():

as far as i can tell, i’m no expert, bug in wxgtk3

[Florian Höch]

The *.deb packaging bug should have resolved itself over the past days, but you’ll need to re-download the updated *.deb (and likely do a bit of manual cleanup for the symlink you created).

Sorry, no idea about the Cairo bug, but it might help to remove wxgtk3 and libcairo, then reinstall them (or switch to wxgtk4, although that package seems to be somewhat broken under Ubuntu because after installing it, import wx doesn’t work unless you manually add the wxPython-4.x folder to PYTHONPATH).

[diehard67]

ok, I installed the new deb file, no change, the symlink is still needed.

and when I tried to remove wxgtk3 the package manager wanted to remove both displaycal and kicad.  I removed it anyway and reinstalled displaycal, the system reinstalled wxgtk3 automaticly with it.

is there a way to make displaycal use wxgtk4 while haveing wxgtk3 still installed???? and if so, how?????????

edit:

I managed to get displaycalto use wxgtk4, no help, same error.

so it would seem that the issue is with cairo.

I got wxgtk4 to load by modifying the little shell script that launches displaycal

#! /usr/bin/python
# -*- coding: utf-8 -*-

import sys
sys.path.insert(0, '/usr/lib/python2.7/dist-packages/wxPython-4.0.1-py2.7-linux-amd64.egg')
import wx
wx.VERSION

from DisplayCAL.main import main

main()

• This reply was modified 5 years, 2 months ago by diehard67. Reason: did some hacking

[Florian Höch]

ok, I installed the new deb file, no change, the symlink is still needed.

Then it’s not the new deb and you may have to wait for the mirrors to get updated. The new one has a creation date of 2018-02-28 (you can check that when opening the deb in e.g. file roller to see the archive contents).

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