Your message dated Sat, 17 Nov 2018 22:50:59 +0000 with message-id <[email protected]> and subject line Bug#913287: fixed in qtbase-opensource-src 5.11.2+dfsg-6 has caused the Debian Bug report #913287, regarding libqt5core5a: loads libGL.so instead of libGL.so.1, causing PyQt5 to crash on systems with NVIDIA libraries installed to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 913287: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=913287 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: libqt5core5a Version: 5.11.2+dfsg-4 Severity: important Tags: patch upstream Hello, A long-standing bug affects the PyQt5 (and previously the PyQt4) packages, whereby they crash on Debian-based systems which have the NVIDIA libraries installed. The following almost minimal code crashes: #!/usr/bin/python3 import sys from PyQt5.QtCore import QUrl from PyQt5.QtWidgets import QApplication from PyQt5.QtWebEngineWidgets import QWebEngineView app = QApplication(sys.argv) wv = QWebEngineView() wv.load(QUrl('about:blank')) wv.show() app.exec_() See for example: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=912925 https://bugs.launchpad.net/ubuntu/+source/python-qt4/+bug/941826 I have managed to track down the source of the error and reported it upstream (along with debugging logs and so on) at: https://bugreports.qt.io/browse/QTBUG-71488 It turns out that the bug lies in the libqt5core5a library, which tries loading libGL.so before trying libGL.so.1, which is the wrong order (in particular on Debian-based systems - see the above Debian bug report for a discussion of why). I have created and tested the attached patch for the bug. It would be great if this patch could be applied to Debian before buster is frozen; it probably won't make it into the upstream sources in time for buster (because it would presumably go into the 5.12.x tree). Thanks! Julian -- System Information: Debian Release: buster/sid APT prefers stretch APT policy: (500, 'stretch'), (500, 'testing'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.14.0-3-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8) (ignored: LC_ALL set to en_GB.UTF-8), LANGUAGE=en_GB.utf8 (charmap=UTF-8) (ignored: LC_ALL set to en_GB.UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages libqt5core5a depends on: ii libc6 2.27-8 ii libdouble-conversion1 3.1.0-2 ii libgcc1 1:8.2.0-9 ii libglib2.0-0 2.58.1-2 ii libicu60 60.2-6 ii libpcre2-16-0 10.32-3 ii libstdc++6 8.2.0-9 ii zlib1g 1:1.2.11.dfsg-1 Versions of packages libqt5core5a recommends: ii qttranslations5-l10n 5.11.2-2 Versions of packages libqt5core5a suggests: ii libthai0 0.1.28-1 -- no debconf information--- a/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp +++ b/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp @@ -650,9 +650,9 @@ #if QT_CONFIG(library) extern const QString qt_gl_library_name(); // QLibrary lib(qt_gl_library_name()); - QLibrary lib(QLatin1String("GL")); + QLibrary lib(QLatin1String("GL"), 1); if (!lib.load()) - lib.setFileNameAndVersion(QLatin1String("GL"), 1); + lib.setFileName(QLatin1String("GL")); glXGetProcAddressARB = (qt_glXGetProcAddressARB) lib.resolve("glXGetProcAddressARB"); #endif }
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--- Begin Message ---Source: qtbase-opensource-src Source-Version: 5.11.2+dfsg-6 We believe that the bug you reported is fixed in the latest version of qtbase-opensource-src, which is due to be installed in the Debian FTP archive. A summary of the changes between this version and the previous one is attached. Thank you for reporting the bug, which will now be closed. If you have further comments please address them to [email protected], and the maintainer will reopen the bug report if appropriate. Debian distribution maintenance software pp. Lisandro Damián Nicanor Pérez Meyer <[email protected]> (supplier of updated qtbase-opensource-src package) (This message was generated automatically at their request; if you believe that there is a problem with it please contact the archive administrators by mailing [email protected]) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Format: 1.8 Date: Sat, 17 Nov 2018 19:24:49 -0300 Source: qtbase-opensource-src Binary: libqt5core5a libqt5gui5 qt5-gtk-platformtheme qt5-flatpak-platformtheme libqt5network5 libqt5opengl5 libqt5sql5 libqt5sql5-mysql libqt5sql5-odbc libqt5sql5-psql libqt5sql5-sqlite libqt5sql5-tds libqt5sql5-ibase libqt5xml5 libqt5dbus5 libqt5test5 libqt5concurrent5 libqt5widgets5 libqt5printsupport5 qtbase5-dev qtbase5-private-dev libqt5opengl5-dev qtbase5-dev-tools qt5-qmake-bin qt5-qmake qtbase5-examples qt5-default qtbase5-doc qtbase5-doc-html Architecture: source Version: 5.11.2+dfsg-6 Distribution: unstable Urgency: medium Maintainer: Debian Qt/KDE Maintainers <[email protected]> Changed-By: Lisandro Damián Nicanor Pérez Meyer <[email protected]> Description: libqt5concurrent5 - Qt 5 concurrent module libqt5core5a - Qt 5 core module libqt5dbus5 - Qt 5 D-Bus module libqt5gui5 - Qt 5 GUI module libqt5network5 - Qt 5 network module libqt5opengl5 - Qt 5 OpenGL module libqt5opengl5-dev - Qt 5 OpenGL library development files libqt5printsupport5 - Qt 5 print support module libqt5sql5 - Qt 5 SQL module libqt5sql5-ibase - Qt 5 Firebird database driver libqt5sql5-mysql - Qt 5 MySQL database driver libqt5sql5-odbc - Qt 5 ODBC database driver libqt5sql5-psql - Qt 5 PostgreSQL database driver libqt5sql5-sqlite - Qt 5 SQLite 3 database driver libqt5sql5-tds - Qt 5 FreeTDS database driver libqt5test5 - Qt 5 test module libqt5widgets5 - Qt 5 widgets module libqt5xml5 - Qt 5 XML module qt5-default - Qt 5 development defaults package qt5-flatpak-platformtheme - Qt 5 Flatpak platform theme qt5-gtk-platformtheme - Qt 5 GTK+ 3 platform theme qt5-qmake - Qt 5 qmake Makefile generator tool qt5-qmake-bin - Qt 5 qmake Makefile generator tool — binary file qtbase5-dev - Qt 5 base development files qtbase5-dev-tools - Qt 5 base development programs qtbase5-doc - Qt 5 base documentation qtbase5-doc-html - Qt 5 base HTML documentation qtbase5-examples - Qt 5 base examples qtbase5-private-dev - Qt 5 base private development files Closes: 913287 Changes: qtbase-opensource-src (5.11.2+dfsg-6) unstable; urgency=medium . [ Dmitry Shachnev ] * Stop patching mkspecs/qmodule.pri in override_dh_auto_configure. The condition has changed to !host_build|!cross_compile in Qt 5.9, which is always true for us. * Strip -fdebug-prefix-map=${BUILDDIR} flag from generated qmodule.pri. This flag was unwantedly leaking to builds of other Qt modules. Thanks to Helmut Grohne for noticing it! * Build corelib and gui without -O3 on ia64 as a workaround for GCC bug (PR rtl-optimization/85412). * Update symbols files with buildds’ logs (alpha and kfreebsd-i386). . [ Lisandro Damián Nicanor Pérez Meyer ] * Backport remove_need_for_glXGetProcAddressARB.patch. This removes the need for using dlopen() and thus libGL.so.1 should be used instead of libGL.so (Closes: #913287). * Include /usr/share/dpkg/pkg-info.mk and replace the call to dpkg-parsechangelog with DEB_VERSION_UPTREAM. According to lintian this should handle more corner cases. 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