qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
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Install the package that provides "libxcb-util.so.1" on your system.
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Do you mean run tests on your GUI in GitLab ?
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Yes you can, you have to use the offscreen backend though unless your runner provides adequate connection to an X server.
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I am using Qt-5.15.0, got the same problem.
More details are:
QLibraryPrivate::loadPlugin failed on "/opt/Qt/5.15.0/gcc_64/plugins/platforms/libqxcb.so" : "Cannot load library /opt/Qt/5.15.0/gcc_64/plugins/platforms/libqxcb.so: (libxcb-xinerama.so.0: cannot open shared object file: No such file or directory)"Solved by installing the dependent package.
Command to install: sudo apt-get install libxcb-xinerama0@Srinivas-Reddy This worked for me. Thank you.
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Hi ,
I am facing a similar issue could you please help.Got keys from plugin meta data ("xcb")
QFactoryLoader::QFactoryLoader() checking directory path "/usr/bin/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqeglfs.so"
Got keys from plugin meta data ("eglfs")
QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqlinuxfb.so"
Got keys from plugin meta data ("linuxfb")
QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqminimal.so"
Got keys from plugin meta data ("minimal")
QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqminimalegl.so"
Got keys from plugin meta data ("minimalegl")
QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqoffscreen.so"
Got keys from plugin meta data ("offscreen")
QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqvnc.so"
Got keys from plugin meta data ("vnc")
QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqxcb.so"
Got keys from plugin meta data ("xcb")
loaded library "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so"
qt.qpa.xcb: could not connect to display
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/opt/appname/libs/Qt/plugins/platforms" 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.
@jarvis Hi jarvis,
I am also getting same problem
Got keys from plugin meta data ("webgl")
QFactoryLoader::QFactoryLoader() looking at "/home/vineeth/.local/lib/python3.8/site-packages/PyQt5/Qt5/plugins/platforms/libqxcb.so"
Found metadata in lib /home/vineeth/.local/lib/python3.8/site-packages/PyQt5/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 "/home/vineeth/.local/lib/python3.8/site-packages/PyQt5/Qt5/plugins/platforms/libqxcb.so"
qt.qpa.xcb: could not connect to display
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, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.
Aborted (core dumped)
did u found the solution??
I am using Linux in windows(WSL)
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@SGaist
@jarvis Hi guys,
I am also getting the same problemGot keys from plugin meta data ("webgl")
QFactoryLoader::QFactoryLoader() looking at "/home/vineeth/.local/lib/python3.8/site-packages/PyQt5/Qt5/plugins/platforms/libqxcb.so"
Found metadata in lib /home/vineeth/.local/lib/python3.8/site-packages/PyQt5/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 "/home/vineeth/.local/lib/python3.8/site-packages/PyQt5/Qt5/plugins/platforms/libqxcb.so"
qt.qpa.xcb: could not connect to display
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, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.
Aborted (core dumped)
**did u found the solution??
I am using Linux in windows(WSL) and tried it normal ubuntu also getting same error**
-
"qt.qpa.xcb: could not connect to display"
You should check the Windows documentation.
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Good morning,
I am having trouble running a python code (not written by me) that uses pyroot.
My working system is Ubuntu 18.At the start of the script I get the following message
cling::DynamicLibraryManager::loadLibrary(): /home/matteo/anaconda3/bin/../lib/libfontconfig.so.1: undefined symbol: FT_Done_MM_Var
Error in TInterpreter::TCling::AutoLoad: failure loading library libGX11TTF.so for TGX11TTF
cling::DynamicLibraryManager::loadLibrary(): /home/matteo/anaconda3/bin/../lib/libfontconfig.so.1: undefined symbol: FT_Done_MM_Var
Info in TApplication::InitializeGraphics: no TTF supportWhile, at the end, just before it crushes, (after export QT_DEBUG_PLUGINS=1) I get the following
QFactoryLoader::QFactoryLoader() checking directory path "/home/matteo/anaconda3/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/home/matteo/anaconda3/plugins/platforms/libqeglfs.so"
Found metadata in lib /home/matteo/anaconda3/plugins/platforms/libqeglfs.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"eglfs"
]
},
"archreq": 0,
"className": "QEglFSIntegrationPlugin",
"debug": false,
"version": 330752
}Got keys from plugin meta data ("eglfs")
QFactoryLoader::QFactoryLoader() looking at "/home/matteo/anaconda3/plugins/platforms/libqminimal.so"
Found metadata in lib /home/matteo/anaconda3/plugins/platforms/libqminimal.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"minimal"
]
},
"archreq": 0,
"className": "QMinimalIntegrationPlugin",
"debug": false,
"version": 330752
}Got keys from plugin meta data ("minimal")
QFactoryLoader::QFactoryLoader() looking at "/home/matteo/anaconda3/plugins/platforms/libqminimalegl.so"
Found metadata in lib /home/matteo/anaconda3/plugins/platforms/libqminimalegl.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"minimalegl"
]
},
"archreq": 0,
"className": "QMinimalEglIntegrationPlugin",
"debug": false,
"version": 330752
}Got keys from plugin meta data ("minimalegl")
QFactoryLoader::QFactoryLoader() looking at "/home/matteo/anaconda3/plugins/platforms/libqoffscreen.so"
Found metadata in lib /home/matteo/anaconda3/plugins/platforms/libqoffscreen.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"offscreen"
]
},
"archreq": 0,
"className": "QOffscreenIntegrationPlugin",
"debug": false,
"version": 330752
}Got keys from plugin meta data ("offscreen")
QFactoryLoader::QFactoryLoader() looking at "/home/matteo/anaconda3/plugins/platforms/libqvnc.so"
Found metadata in lib /home/matteo/anaconda3/plugins/platforms/libqvnc.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"vnc"
]
},
"archreq": 0,
"className": "QVncIntegrationPlugin",
"debug": false,
"version": 330752
}Got keys from plugin meta data ("vnc")
QFactoryLoader::QFactoryLoader() looking at "/home/matteo/anaconda3/plugins/platforms/libqwebgl.so"
Found metadata in lib /home/matteo/anaconda3/plugins/platforms/libqwebgl.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"webgl"
]
},
"archreq": 0,
"className": "QWebGLIntegrationPlugin",
"debug": false,
"version": 330752
}Got keys from plugin meta data ("webgl")
QFactoryLoader::QFactoryLoader() looking at "/home/matteo/anaconda3/plugins/platforms/libqxcb.so"
Found metadata in lib /home/matteo/anaconda3/plugins/platforms/libqxcb.so, metadata=
{
"IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
"MetaData": {
"Keys": [
"xcb"
]
},
"archreq": 0,
"className": "QXcbIntegrationPlugin",
"debug": false,
"version": 330752
}Got keys from plugin meta data ("xcb")
QFactoryLoader::QFactoryLoader() checking directory path "/home/matteo/anaconda3/bin/platforms" ...
Cannot load library /home/matteo/anaconda3/plugins/platforms/libqxcb.so: (/home/matteo/anaconda3/plugins/platforms/../../lib/libfontconfig.so.1: undefined symbol: FT_Done_MM_Var)
QLibraryPrivate::loadPlugin failed on "/home/matteo/anaconda3/plugins/platforms/libqxcb.so" : "Cannot load library /home/matteo/anaconda3/plugins/platforms/libqxcb.so: (/home/matteo/anaconda3/plugins/platforms/../../lib/libfontconfig.so.1: undefined symbol: FT_Done_MM_Var)"
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, minimal, minimalegl, offscreen, vnc, webgl, xcb.
The output of the command ls -l /usr/lib/x86_64-linux-gnu/libQt5Xcb* is
-rw-r--r-- 1 root root 1602 feb 7 2020 /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.prl
lrwxrwxrwx 1 root root 21 feb 7 2020 /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so -> libQt5XcbQpa.so.5.9.5
lrwxrwxrwx 1 root root 21 feb 7 2020 /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 -> libQt5XcbQpa.so.5.9.5
lrwxrwxrwx 1 root root 21 feb 7 2020 /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5.9 -> libQt5XcbQpa.so.5.9.5
-rw-r--r-- 1 root root 1070840 feb 7 2020 /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5.9.5So, the point is that I do not have a deep knowledge of Ubuntu system in genreal, and I do not know if the problem is only with QT plugins or is elsewhere. The only thing I know is that the code itself is working fine in other machines, so the problem should not rely there.
Thanks if you can help me, let me know if you need any other information.
Thanks!
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Hi and welcome to devnet,
Your anaconda installation looks unusual, how did you do it ?
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@MBat said in qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.:
anaconda3/plugins/platforms/libqxcb.so
Usually conda environments are not located at that level. That's what I find suspicious. But I have essentially used miniconda rather than the full Anaconda.
Your main issue is that there's something wrong with your libfontconfig library.
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@Lengendary This is working solution for me, thank you
sudo apt-get install libxcb-xinerama0
@Matriarch, thank you,
sudo apt-get install libxcb-xinerama0worked for me on Ubuntu 20.04. Shame one has to scroll so deep down into the discussion before finding the answer.
Also, I recently spent a lot of time getting a Qt application to run in a Github Actions VM - I was battling the xcb errors. Here's the complete list of things that needed to be installed:
sudo apt-get install -qq libglu1-mesa-dev libx11-xcb-dev '^libxcb*' -
@Lengendary said in qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.:
libxcb-xinerama0
I am also facing the same issue :
Got keys from plugin meta data ("xcb")
QFactoryLoader::QFactoryLoader() checking directory path "/qfs/people/deso666/.conda/envs/particle/bin/platforms" ...
Cannot load library /qfs/people/deso666/.conda/envs/particle/lib/python3.6/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so: (/share/apps/python/anaconda3.2019.3/lib/libQt5XcbQpa.so.5: symbol _ZN11QFontEngine14bitmapForGlyphEj6QFixedRK10QTransform, version Qt_5_PRIVATE_API not defined in file libQt5Gui.so.5 with link time reference)
QLibraryPrivate::loadPlugin failed on "/qfs/people/deso666/.conda/envs/particle/lib/python3.6/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so" : "Cannot load library /qfs/people/deso666/.conda/envs/particle/lib/python3.6/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so: (/share/apps/python/anaconda3.2019.3/lib/libQt5XcbQpa.so.5: symbol _ZN11QFontEngine14bitmapForGlyphEj6QFixedRK10QTransform, version Qt_5_PRIVATE_API not defined in file libQt5Gui.so.5 with link time reference)"
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, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.
sh: line 1: 26241 Aborted (core dumped) python gui_annotation.py
Then I ran:
user$ cd /qfs/people/deso666/.conda/envs/particle/lib/python3.6/site-packages/PyQt5/Qt/plugins/platforms/
user$ ldd libqxcb.so
./libqxcb.so: /share/apps/python/anaconda3.2019.3/lib/libQt5Core.so.5: version `Qt_5.13' not found (required by ./libqxcb.so)
linux-vdso.so.1 => (0x00007ffd83f66000)
libQt5XcbQpa.so.5 => /share/apps/python/anaconda3.2019.3/lib/libQt5XcbQpa.so.5 (0x00007fcf99cc3000)
libfontconfig.so.1 => /share/apps/python/anaconda3.2019.3/lib/libfontconfig.so.1 (0x00007fcf99a7e000)
libfreetype.so.6 => /share/apps/python/anaconda3.2019.3/lib/libfreetype.so.6 (0x00007fcf999d2000)
libz.so.1 => /share/apps/python/anaconda3.2019.3/lib/libz.so.1 (0x00007fcf999b2000)
libQt5Gui.so.5 => /share/apps/python/anaconda3.2019.3/lib/libQt5Gui.so.5 (0x00007fcf995e5000)
libQt5DBus.so.5 => /share/apps/python/anaconda3.2019.3/lib/libQt5DBus.so.5 (0x00007fcf99585000)
libQt5Core.so.5 => /share/apps/python/anaconda3.2019.3/lib/libQt5Core.so.5 (0x00007fcf9916e000)
libGL.so.1 => /usr/lib64/libGL.so.1 (0x00007fcf98efb000)
libpthread.so.0 => /usr/lib64/libpthread.so.0 (0x00007fcf98cdf000)
libX11-xcb.so.1 => /share/apps/python/anaconda3.2019.3/lib/libX11-xcb.so.1 (0x00007fcf98cda000)
libxcb.so.1 => /share/apps/python/anaconda3.2019.3/lib/libxcb.so.1 (0x00007fcf98ab0000)
libXrender.so.1 => /usr/lib64/libXrender.so.1 (0x00007fcf988a5000)
libXext.so.6 => /share/apps/python/anaconda3.2019.3/lib/libXext.so.6 (0x00007fcf98890000)
libX11.so.6 => /share/apps/python/anaconda3.2019.3/lib/libX11.so.6 (0x00007fcf9874c000)
libm.so.6 => /usr/lib64/libm.so.6 (0x00007fcf9844a000)
libxkbcommon-x11.so.0 => /usr/lib64/libxkbcommon-x11.so.0 (0x00007fcf98242000)
libxkbcommon.so.0 => /usr/lib64/libxkbcommon.so.0 (0x00007fcf98001000)
libdl.so.2 => /usr/lib64/libdl.so.2 (0x00007fcf97dfd000)
libstdc++.so.6 => /share/apps/python/anaconda3.2019.3/lib/libstdc++.so.6 (0x00007fcf97cbc000)
libgcc_s.so.1 => /share/apps/python/anaconda3.2019.3/lib/libgcc_s.so.1 (0x00007fcf97ca7000)
libc.so.6 => /usr/lib64/libc.so.6 (0x00007fcf978e4000)
libgthread-2.0.so.0 => /share/apps/python/anaconda3.2019.3/lib/./libgthread-2.0.so.0 (0x00007fcf978df000)
librt.so.1 => /usr/lib64/librt.so.1 (0x00007fcf976d6000)
libglib-2.0.so.0 => /share/apps/python/anaconda3.2019.3/lib/./libglib-2.0.so.0 (0x00007fcf975b9000)
libXi.so.6 => /usr/lib64/libXi.so.6 (0x00007fcf973a9000)
libxml2.so.2 => /share/apps/python/anaconda3.2019.3/lib/./libxml2.so.2 (0x00007fcf9723e000)
libuuid.so.1 => /share/apps/python/anaconda3.2019.3/lib/./libuuid.so.1 (0x00007fcf9703a000)
libpng16.so.16 => /share/apps/python/anaconda3.2019.3/lib/./libpng16.so.16 (0x00007fcf97000000)
libdbus-1.so.3 => /share/apps/python/anaconda3.2019.3/lib/./libdbus-1.so.3 (0x00007fcf96fac000)
libicui18n.so.58 => /share/apps/python/anaconda3.2019.3/lib/./libicui18n.so.58 (0x00007fcf96b37000)
libicuuc.so.58 => /share/apps/python/anaconda3.2019.3/lib/./libicuuc.so.58 (0x00007fcf96788000)
libicudata.so.58 => /share/apps/python/anaconda3.2019.3/lib/./libicudata.so.58 (0x00007fcf94c88000)
/lib64/ld-linux-x86-64.so.2 (0x0000565509dbb000)
libexpat.so.1 => /share/apps/python/anaconda3.2019.3/lib/libexpat.so.1 (0x00007fcf94c54000)
libxcb-dri3.so.0 => /share/apps/python/anaconda3.2019.3/lib/libxcb-dri3.so.0 (0x00007fcf94a4e000)
libxcb-present.so.0 => /share/apps/python/anaconda3.2019.3/lib/libxcb-present.so.0 (0x00007fcf9484b000)
libxcb-sync.so.1 => /share/apps/python/anaconda3.2019.3/lib/libxcb-sync.so.1 (0x00007fcf94644000)
libxshmfence.so.1 => /usr/lib64/libxshmfence.so.1 (0x00007fcf94440000)
libglapi.so.0 => /usr/lib64/libglapi.so.0 (0x00007fcf94211000)
libselinux.so.1 => /usr/lib64/libselinux.so.1 (0x00007fcf93fea000)
libXdamage.so.1 => /usr/lib64/libXdamage.so.1 (0x00007fcf93de6000)
libXfixes.so.3 => /usr/lib64/libXfixes.so.3 (0x00007fcf93be0000)
libxcb-glx.so.0 => /share/apps/python/anaconda3.2019.3/lib/libxcb-glx.so.0 (0x00007fcf939c4000)
libxcb-dri2.so.0 => /share/apps/python/anaconda3.2019.3/lib/libxcb-dri2.so.0 (0x00007fcf937be000)
libXxf86vm.so.1 => /usr/lib64/libXxf86vm.so.1 (0x00007fcf935b8000)
libdrm.so.2 => /usr/lib64/libdrm.so.2 (0x00007fcf933a9000)
libXau.so.6 => /usr/lib64/libXau.so.6 (0x00007fcf931a4000)
libxcb-xkb.so.1 => /usr/lib64/libxcb-xkb.so.1 (0x00007fcf92f88000)
libpcre.so.1 => /share/apps/python/anaconda3.2019.3/lib/././libpcre.so.1 (0x00007fcf92f3f000)
liblzma.so.5 => /share/apps/python/anaconda3.2019.3/lib/././liblzma.so.5 (0x00007fcf92d19000)please help me.
-
For those who could face the same issue: I also got
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, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.when trying to open last release of Dooble web browser (2021.07.05) on debian 10. Checking through
export QT_DEBUG_PLUGINS=1I found thatCannot load library /opt/dooble/plugins/platforms/libqxcb.so: (libxcb-util.so.1: cannot open shared object file: No such file or directory) QLibraryPrivate::loadPlugin failed on "/opt/dooble/plugins/platforms/libqxcb.so" : "Cannot load library /opt/dooble/plugins/platforms/libqxcb.so: (libxcb-util.so.1: cannot open shared object file: No such file or directory)" 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, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.After many tries of reinstalling libraries as suggested, finally I found the issue: I had installed
libxcb-util0, but I neededlibxcb-util1, which is only in the repository of Testing version of Debian 10. Installing it solved my issue.Thanks for the suggestion of using
export QT_DEBUG_PLUGINS=1. -
Hi,
You should run your application with the
QT_DEBUG_PLUGINSenvironment variable set to 1 to see what might go wrong when the plugin is loaded.@SGaist Hey, i use a hp chromebook, with a linux development environment. I downloaded the Qt online installer and installed Qt succesfully but when i tried to run it i got this error:
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.
can you please help.
-
@SGaist Hey, i use a hp chromebook, with a linux development environment. I downloaded the Qt online installer and installed Qt succesfully but when i tried to run it i got this error:
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.
can you please help.
-
I have same problem on redhat 8
after updating to qt creator 5
and one of solution that i did is to insted of running "/opt/Qt/Tools/QtCreator/bin/qtcreator"
I run "/opt/Qt/Tools/QtCreator/bin/qtcreator.sh"for icon to work:
cd /usr/local/share/applications
sudo vim org.qt-project.qtcreator.desktopchange this: Exec="/opt/Qt/Tools/QtCreator/bin/qtcreator" %F
to this: Exec="/opt/Qt/Tools/QtCreator/bin/qtcreator.sh" %F -
I have been trying to automatically LiveStream OBS-Studio, for sometime now, I was getting the error message reported here.
My setup is Ubuntu 21.0.4 OBS-Studio 27.01. I have a scrip that runs OBS with all the correct parameters to choose the correct video depending on the day of week. This script works perfectly. But it would not run from crontab.
The bulk of this post did not seem like it was solving the real problem and did not solve mine.The thing is my script did work when I ran it from the command line from within my "GUI" session. This indicates to me that I had all the correct things in place to run my script.
After some thought I realised .....
crontab runs on the console, if you want to think of it as an old tty terminal not a GUI session.So I determined what my $DISPLAY is by typing "echo $DISPLAY, in my case this returned 0 (zero).
Now I know my DISPLAY I putting the DISPLAY=0 in the users crontab, before calling my script and this worked.
As above, I determined my DISPLAY number by: Typing echo $DISPLAY and pressing ENTER. This gave me 0.
My crontab now has: 55 20 * * * DISPLAY=:0 /home/pats/Documents/LiveStreamFiles/scripts/myscript.sh 2>&1 &
Thanks again and I hope this helps others...
