ddcui: /usr/lib/i386-linux-gnu/sse2/libQt5Core.so.5: version `Qt_5.15' not found (required by ddcui)

[gadefox]

This is weird, because the library is an old version (5.9.5). Do you use QtChooser?

• The C compiler identification is GNU 7.5.0
• The CXX compiler identification is GNU 7.5.0
• Detecting C compiler ABI info
• Detecting C compiler ABI info - done
• Check for working C compiler: /usr/bin/cc - skipped
• Detecting C compile features
• Detecting C compile features - done
• Detecting CXX compiler ABI info
• Detecting CXX compiler ABI info - done
• Check for working CXX compiler: /usr/bin/c++ - skipped
• Detecting CXX compile features
• Detecting CXX compile features - done
• Significant environment variables:
• INCLUDE:
• LD_LIBRARY_PATH:
• PKG_CONFIG_PATH:
• CMAKE_MODULE_PATH:
• CMAKE_PREFIX_PATH:
• DESTDIR:
• CMAKE_INSTALL_PREFIX: /usr/local
• Qt5Widgets_INCLUDE_DIRS: /opt/qt515/include/;/opt/qt515/include/QtWidgets;/opt/qt515/include/QtGui;/opt/qt515/include/QtCore;/opt/qt515/.//mkspecs/linux-g++;/usr/include
• Qt5Core_INCLUDE_DIRS: /opt/qt515/include/;/opt/qt515/include/QtCore;/opt/qt515/.//mkspecs/linux-g++
• Qt5Gui_INCLUDE_DIRS: /opt/qt515/include/;/opt/qt515/include/QtGui;/opt/qt515/include/QtCore;/opt/qt515/.//mkspecs/linux-g++;/usr/include
• Qt5Help_INCLUDE_DIRS: /opt/qt515/include/;/opt/qt515/include/QtHelp;/opt/qt515/include/QtWidgets;/opt/qt515/include/QtGui;/opt/qt515/include/QtCore;/opt/qt515/.//mkspecs/linux-g++;/usr/include;/opt/qt515/include/QtSql
• Found PkgConfig: /usr/bin/pkg-config (found version "0.29.1")
• Checking for module 'glib-2.0'
• Found glib-2.0, version 2.56.4
• Checking for module 'ddcutil>=0.9.9'
• Found ddcutil, version 1.1.1 Set by pkg-config:
• GLIB2_INCLUDE_DIRS: /usr/include/glib-2.0;/usr/lib/i386-linux-gnu/glib-2.0/include
• GLIB2_LIBRARIES: glib-2.0
• DDCUTIL_INCLUDE_DIRS: /usr/local/include
• DDCUTIL_LIBRARY_DIRS: /usr/local/lib
• DDCUTIL_LIBRARIES: ddcutil
• CMAKE_CURRENT_BINARY_DIR: /home/ren/.build/ddcui-0.2.0-dev
• INCLUDE_DIRECTORIES: /opt/qt515/include;/opt/qt515/include/QtWidgets;/opt/qt515/include/QtGui;/opt/qt515/include/QtCore;/opt/qt515/./mkspecs/linux-g++;/usr/include;/opt/qt515/include;/opt/qt515/include/QtGui;/opt/qt515/include/QtCore;/opt/qt515/./mkspecs/linux-g++;/usr/include;/opt/qt515/include;/opt/qt515/include/QtCore;/opt/qt515/./mkspecs/linux-g++;/opt/qt515/include;/opt/qt515/include/QtHelp;/opt/qt515/include/QtWidgets;/opt/qt515/include/QtGui;/opt/qt515/include/QtCore;/opt/qt515/./mkspecs/linux-g++;/usr/include;/opt/qt515/include/QtSql;/usr/include/glib-2.0;/usr/lib/i386-linux-gnu/glib-2.0/include;/usr/local/include;/home/ren/.build/ddcui-0.2.0-dev/src;/home/ren/.build/ddcui-0.2.0-dev
• /opt/qt515/include
• /opt/qt515/include/QtWidgets
• /opt/qt515/include/QtGui
• /opt/qt515/include/QtCore
• /opt/qt515/./mkspecs/linux-g++
• /usr/include
• /opt/qt515/include
• /opt/qt515/include/QtGui
• /opt/qt515/include/QtCore
• /opt/qt515/./mkspecs/linux-g++
• /usr/include
• /opt/qt515/include
• /opt/qt515/include/QtCore
• /opt/qt515/./mkspecs/linux-g++
• /opt/qt515/include
• /opt/qt515/include/QtHelp
• /opt/qt515/include/QtWidgets
• /opt/qt515/include/QtGui
• /opt/qt515/include/QtCore
• /opt/qt515/./mkspecs/linux-g++
• /usr/include
• /opt/qt515/include/QtSql
• /usr/include/glib-2.0
• /usr/lib/i386-linux-gnu/glib-2.0/include
• /usr/local/include
• /home/ren/.build/ddcui-0.2.0-dev/src
• /home/ren/.build/ddcui-0.2.0-dev
• CMAKE_AUTOUIC: ON
• AUTOGEN_BUILD_DIR:
• Configuring done
• Generating done
• Build files have been written to: /home/ren/.build/ddcui-0.2.0-dev

[rockowitz]

Please describe you build environment: distribution, kernel, etc. That your qt files are under /opt/qt515 suggests that you built your own Qt instead of using a distribution version. Are you really trying to compile a 32 bit version of ddcui?

[gadefox]

My apologies, this seems to be the problem on my side - I remember compiling the app w/ Qt 5.9.5 (which is the last available version on 32-bit Kubuntu 18.04) without any problems. I'll let you know..

[gadefox]

The app without root permissions shows empty display list*. In this case Capabilities option in menu causes a segmentation fault. That's the reason I can't use the latest version, cause you automatically try to show display capabilities (therefore I get a segmentation fault immediately after start).

I believe you need to check this condition in the code..

Open failed for /dev/i2c-1: errno=EACCES(13): Permission denied Open failed for /dev/i2c-2: errno=EACCES(13): Permission denied Open failed for /dev/i2c-3: errno=EACCES(13): Permission denied Open failed for /dev/i2c-4: errno=EACCES(13): Permission denied Open failed for /dev/i2c-5: errno=EACCES(13): Permission denied

[rockowitz]

@gadefox Your latest comment re Capabilities segfault has been moved to separate issue #30

[gadefox]

No problem.. I changed the title again although I would rather delete this ticket and recreate it again without this mess..

Anyway, I can't replicate this problem unfortunately, because I don't use Ubuntu distro anymore - too many problems. I installed Debian 11 (again 32 bit) with only one Qt5 installation (5.15.2 in this case) and the GUI app (dcui) works fine.