** Description changed:
+ [Impact]
+ The plugin is broken (does not load) since qtbase has been rebuilt with
XInput2 support in
https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.12.2+dfsg-4.
+
+ [Test Case]
+ 1. Install deepin-screenshot or any other graphical Qt application.
+ 2. Run it with QT_QPA_PLATFORM=dxcb environment variable set.
+ 3. It should run correctly.
+
+ [Proposed Fix]
+ deepin-qt5dxcb-plugin is rebuilt against the current qtbase version.
+ Build-Dependency on libxcb-xinput-dev is added, otherwise it FTBFS.
+
+ [Regression Potential]
+ I cannot imagine regressions compared to the “does not load” state.
+
+ ------------------------------------------------------------------------
+ Original Description
+
$ deepin-screenshot
qt.qpa.plugin: Could not load the Qt platform plugin "dxcb" 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: wayland-org.kde.kwin.qpa, dxcb, eglfs,
linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland,
wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.
$ dpkg -S /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libdxcb.so
qt5dxcb-plugin:amd64:
/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libdxcb.so
$ LD_PRELOAD=/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libdxcb.so
deepin-screenshot
deepin-screenshot: symbol lookup error:
/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libdxcb.so: undefined symbol:
_ZN22deepin_platform_plugin15WindowEventHook11windowEventEP6QEvent
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: qt5dxcb-plugin 1.1.22-1ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
Uname: Linux 5.0.0-13-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat Apr 27 09:25:01 2019
InstallationDate: Installed on 2017-08-28 (606 days ago)
InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
SourcePackage: deepin-qt5dxcb-plugin
UpgradeStatus: Upgraded to disco on 2018-02-08 (442 days ago)
modified.conffile..etc.default.apport:
- # set this to 0 to disable apport, or to 1 to enable it
- # you can temporarily override this with
- # sudo service apport start force_start=1
- enabled=0
+ # set this to 0 to disable apport, or to 1 to enable it
+ # you can temporarily override this with
+ # sudo service apport start force_start=1
+ enabled=0
mtime.conffile..etc.default.apport: 2018-07-03T12:21:32.224223
** Also affects: deepin-qt5dxcb-plugin (Ubuntu Disco)
Importance: Undecided
Status: New
** Changed in: deepin-qt5dxcb-plugin (Ubuntu Disco)
Status: New => In Progress
** Changed in: deepin-qt5dxcb-plugin (Ubuntu Disco)
Assignee: (unassigned) => Dmitry Shachnev (mitya57)
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https://bugs.launchpad.net/bugs/1826629
Title:
deepin-screenshot: can't find dxcb Qt plugin
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