Searching for Xcb Support Qt information? Find all needed info by using official links provided below.
https://doc.qt.io/qt-5/linux-requirements.html
Platform Plugin Dependencies. On Linux, the xcb QPA (Qt Platform Abstraction) platform plugin is used. It provides the basic functionality needed by Qt GUI and Qt Widgets to run against X11. Its library dependencies are described the following table.
https://stackoverflow.com/questions/20604093/qt5-install-on-osx-qt-xcb
I just encountered this same problem myself, and I worked around it by specifying the argument -no-xcb (instead of -qt-xcb) to the configure script. That allowed the compilation of the Qt libraries to complete (although some of the Qt example programs failed to compile... but it was enough to get me back on track for now).
https://stackoverflow.com/questions/57040444/pyqt5-qt-qpa-xcb-errors-when-launching-app
I'm migrating my application from pyqt4 to pyqt5. Most of it works fine except for this issue I keep having on app launch: $ python3 /tmp/loading.py qt.qpa.xcb: failed to initialize XRandr qt.qpa.xcb: X server does not support XInput 2
https://en.wikipedia.org/wiki/XCB
XCB (X protocol C-language Binding) is a library implementing the client-side of the X11 display server protocol. XCB is written in the C programming language and distributed under the MIT License.The project was started in 2001 by Bart Massey and aims to replace XlibLicense: MIT License
https://forum.qt.io/topic/106434/qt-qpa-plugin-could-not-load-the-qt-platform-plugin-xcb-in-even-though-it-was-found
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. This topic has been deleted. Only users with topic management privileges can see it. aurelien13410 ...
https://forum.qt.io/topic/93247/qt-qpa-plugin-could-not-load-the-qt-platform-plugin-xcb-in-even-though-it-was-found/11
~ $ qtcreator 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 (core ...
https://doc-snapshots.qt.io/qt5-5.9/linux-requirements.html
Platform Plugin Dependencies. On Linux, the xcb QPA (Qt Platform Abstraction) platform plugin is used. It provides the basic functionality needed by Qt GUI and Qt Widgets to run against X11. Its library dependencies are described the following table.
https://github.com/qt/qtbase/commit/ac4e848c9802377b7c4ff673180f28b9ca76b746
In this case Qt client will be limited by X server's supported version (which is ok, as we do check the available version at runtime via QXcbConnection::isAtLeastXI2*). - The code was _always_ announcing to X server that we support XI 2.2, by ignoring what actually is supported in the specific build (see XCB_USE_XINPUT ifdefs).
https://github.com/qt/qtbase/commit/32326a4b3b8234f56bb1c5f47b5bdd6c8fec7917
Enable xcb QPA plugin when XQuartz is available. This is done in a single build, alongside the Cocoa version. We delegate part of the configuration …
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