Could not load the Qt platform plugin "xcb" in "" even though it was found.

[kyurik5010]

Здравствуйте @artiomn, при выполнении ./run -q выводится ошибка:

groupadd: GID '20' already exists
qt.qpa.xcb: could not connect to display :0
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.

В скрипте ./run аргумент -q ссылается на путь 'usr/bin/qtcreator'. Если через ./run зайти в образ и пройти по этому пути, то такого исполняемого файла там нет. Он появляется при установке qtcreator через "sudo apt install qtcreator", но проблема остается прежней.

По советам с сайта Qt посмотрел вывод дебагера Qt:

root@docker-desktop:/usr/src/gb# qtcreator
QFactoryLoader::QFactoryLoader() checking directory path "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqeglfs.so"
Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqeglfs.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"eglfs"
]
},
"archreq": 0,
"className": "QEglFSIntegrationPlugin",
"debug": false,
"version": 331520
}

Got keys from plugin meta data ("eglfs")
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqlinuxfb.so"
Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqlinuxfb.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"linuxfb"
]
},
"archreq": 0,
"className": "QLinuxFbIntegrationPlugin",
"debug": false,
"version": 331520
}

Got keys from plugin meta data ("linuxfb")
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqminimal.so"
Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqminimal.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"minimal"
]
},
"archreq": 0,
"className": "QMinimalIntegrationPlugin",
"debug": false,
"version": 331520
}

Got keys from plugin meta data ("minimal")
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqminimalegl.so"
Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqminimalegl.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"minimalegl"
]
},
"archreq": 0,
"className": "QMinimalEglIntegrationPlugin",
"debug": false,
"version": 331520
}

Got keys from plugin meta data ("minimalegl")
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqoffscreen.so"
Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqoffscreen.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"offscreen"
]
},
"archreq": 0,
"className": "QOffscreenIntegrationPlugin",
"debug": false,
"version": 331520
}

Got keys from plugin meta data ("offscreen")
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqvnc.so"
Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqvnc.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"vnc"
]
},
"archreq": 0,
"className": "QVncIntegrationPlugin",
"debug": false,
"version": 331520
}

Got keys from plugin meta data ("vnc")
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so"
Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"xcb"
]
},
"archreq": 0,
"className": "QXcbIntegrationPlugin",
"debug": false,
"version": 331520
}

Got keys from plugin meta data ("xcb")
QFactoryLoader::QFactoryLoader() checking directory path "/usr/bin/platforms" ...
loaded library "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so"
qt.qpa.xcb: could not connect to display :0
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.

Aborted

Решил что может быть проблема в библиотеке "xcb". По советам с того же ресурса переустановил "libxcb-xinerama0" (ситуацию не поменяло). Вывод ldd:

root@docker-desktop:/usr/src/gb# ldd /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
linux-vdso.so.1 (0x00007fff043f0000)
libQt5XcbQpa.so.5 => /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 (0x00007f8dfbb04000)
libQt5Gui.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 (0x00007f8dfb442000)
libQt5Core.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 (0x00007f8dfaef7000)
libstdc++.so.6 => /usr/local/lib64/libstdc++.so.6 (0x00007f8dface3000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f8dfab1e000)
libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f8dfaad8000)
libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f8dfaa13000)
libQt5DBus.so.5 => /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 (0x00007f8dfa98c000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f8dfa96a000)
libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f8dfa965000)
libxcb-icccm.so.4 => /usr/lib/x86_64-linux-gnu/libxcb-icccm.so.4 (0x00007f8dfa95e000)
libxcb-image.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-image.so.0 (0x00007f8dfa958000)
libxcb-shm.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0 (0x00007f8dfa951000)
libxcb-keysyms.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-keysyms.so.1 (0x00007f8dfa74e000)
libxcb-randr.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-randr.so.0 (0x00007f8dfa73c000)
libxcb-render-util.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-render-util.so.0 (0x00007f8dfa538000)
libxcb-render.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-render.so.0 (0x00007f8dfa529000)
libxcb-shape.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-shape.so.0 (0x00007f8dfa524000)
libxcb-sync.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-sync.so.1 (0x00007f8dfa518000)
libxcb-xfixes.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-xfixes.so.0 (0x00007f8dfa50e000)
libxcb-xinerama.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-xinerama.so.0 (0x00007f8dfa509000)
libxcb-xkb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-xkb.so.1 (0x00007f8dfa4eb000)
libxcb-xinput.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-xinput.so.0 (0x00007f8dfa4c7000)
libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f8dfa49c000)
libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 (0x00007f8dfa290000)
libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f8dfa14d000)
libSM.so.6 => /usr/lib/x86_64-linux-gnu/libSM.so.6 (0x00007f8dfa142000)
libICE.so.6 => /usr/lib/x86_64-linux-gnu/libICE.so.6 (0x00007f8dfa124000)
libxkbcommon-x11.so.0 => /usr/lib/x86_64-linux-gnu/libxkbcommon-x11.so.0 (0x00007f8dfa11a000)
libxkbcommon.so.0 => /usr/lib/x86_64-linux-gnu/libxkbcommon.so.0 (0x00007f8dfa0d7000)
libglib-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f8df9fa6000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f8df9e62000)
libgcc_s.so.1 => /usr/local/lib64/libgcc_s.so.1 (0x00007f8df9e47000)
libGL.so.1 => /usr/lib/x86_64-linux-gnu/libGL.so.1 (0x00007f8df9dc0000)
libpng16.so.16 => /usr/lib/x86_64-linux-gnu/libpng16.so.16 (0x00007f8df9d86000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f8df9d67000)
libharfbuzz.so.0 => /usr/lib/x86_64-linux-gnu/libharfbuzz.so.0 (0x00007f8df9c7f000)
libmd4c.so.0 => /usr/lib/x86_64-linux-gnu/libmd4c.so.0 (0x00007f8df9c6d000)
libdouble-conversion.so.3 => /usr/lib/x86_64-linux-gnu/libdouble-conversion.so.3 (0x00007f8df9c56000)
libicui18n.so.67 => /usr/lib/x86_64-linux-gnu/libicui18n.so.67 (0x00007f8df9950000)
libicuuc.so.67 => /usr/lib/x86_64-linux-gnu/libicuuc.so.67 (0x00007f8df9767000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f8df9761000)
libpcre2-16.so.0 => /usr/lib/x86_64-linux-gnu/libpcre2-16.so.0 (0x00007f8df96d5000)
libzstd.so.1 => /usr/lib/x86_64-linux-gnu/libzstd.so.1 (0x00007f8df95fa000)
/lib64/ld-linux-x86-64.so.2 (0x00007f8dfbc7c000)
libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f8df95cb000)
libuuid.so.1 => /usr/lib/x86_64-linux-gnu/libuuid.so.1 (0x00007f8df95c2000)
libbrotlidec.so.1 => /usr/lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x00007f8df95b4000)
libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007f8df955d000)
libxcb-util.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-util.so.1 (0x00007f8df9555000)
libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f8df9550000)
libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f8df934a000)
libbsd.so.0 => /usr/lib/x86_64-linux-gnu/libbsd.so.0 (0x00007f8df9333000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f8df92be000)
libGLdispatch.so.0 => /usr/lib/x86_64-linux-gnu/libGLdispatch.so.0 (0x00007f8df9206000)
libGLX.so.0 => /usr/lib/x86_64-linux-gnu/libGLX.so.0 (0x00007f8df91d2000)
libgraphite2.so.3 => /usr/lib/x86_64-linux-gnu/libgraphite2.so.3 (0x00007f8df91a6000)
libicudata.so.67 => /usr/lib/x86_64-linux-gnu/libicudata.so.67 (0x00007f8df768d000)
libbrotlicommon.so.1 => /usr/lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x00007f8df7668000)
libsystemd.so.0 => /usr/lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007f8df75b3000)
libmd.so.0 => /usr/lib/x86_64-linux-gnu/libmd.so.0 (0x00007f8df75a6000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f8df759b000)
liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f8df7573000)
liblz4.so.1 => /usr/lib/x86_64-linux-gnu/liblz4.so.1 (0x00007f8df754e000)
libgcrypt.so.20 => /usr/lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007f8df742e000)
libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007f8df7408000)

[kyurik5010]

Не уверен в каком направлении рыть дальше. Советуют еще поковыряться с Xserver, но я не уверен что проблема именно в этом

[artiomn]

Здравствуйте, Юрий (@kyurik5010).

Я сейчас перепроверил - всё работает, и образ на dockerhub тот же, что и у меня.

То, что вы не видите бинарника QtCreator, при заходе через ./run - вполне нормально: в этом случае используется другой образ (не artiomn/gb-qt-creator-image, а artiomn/gb-build-image, в котором нет IDE).

Сначала проверьте, что у вас новый образ.
Потом можете попробовать добавить в строку запуска внутри скрипта run следующий параметр: -e "DISPLAY=:0" .
И, на всякий случай, запустить так: DISPLAY=":0" ./run -q.

Если не сработает, будем разбираться дальше.