Problem with XCB and OpenGL
Solved
General and Desktop
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My application is exiting with the following error whenever I try to use OpenGL
QXcbIntegration: Cannot create platform OpenGL context, neither GLX nor EGL are enabledMy desktop is Ubuntu 12.04 (32 bit). I configured Qt 5.6.0 with the following options
./configure -qt-zlib -system-libpng -system-libjpeg -platform linux-g++-32 -fontconfig -qt-xcb -nomake examples -nomake tools
This is the configure output
Configure summary Build type: linux-g++-32 (i386, CPU features: none detected) Build options: Configuration .......... accessibility accessibility-atspi-bridge audio-backend avx c++11 clock-gettime clock-monotonic compile_examples concurrent dbus enable_new_dtags evdev eventfd fontconfig full-config getaddrinfo getifaddrs harfbuzz iconv inotify ipv6ifname large-config largefile linuxfb medium-config minimal-config mremap nis opengl openssl pcre png posix_fallocate precompile_header qpa qpa reduce_exports reduce_relocations release rpath shared small-config sse2 sse3 sse4_1 sse4_2 ssse3 system-freetype system-jpeg system-png threadsafe-cloexec xcb xcb-glx xcb-plugin xcb-qt xcb-xlib xinput2 xkbcommon-qt xlib xrender zlib Build parts ............ libs Mode ................... release Using sanitizer(s)...... none Using C++ standard ..... c++11 Using gold linker....... no Using new DTAGS ........ yes Using PCH .............. yes Using LTCG ............. no Target compiler supports: SSE2/SSE3/SSSE3 ...... yes/yes/yes SSE4.1/SSE4.2 ........ yes/yes AVX/AVX2 ............. yes/no Qt modules and options: Qt D-Bus ............... yes (loading dbus-1 at runtime) Qt Concurrent .......... yes Qt GUI ................. yes Qt Widgets ............. yes Large File ............. yes QML debugging .......... yes Use system proxies ..... no Support enabled for: Accessibility .......... yes ALSA ................... no CUPS ................... no Evdev .................. yes FontConfig ............. yes FreeType ............... yes (system library) Glib ................... no GStreamer .............. no GTK theme .............. no HarfBuzz ............... yes (bundled copy) Iconv .................. yes ICU .................... no Image formats: GIF .................. yes (plugin, using bundled copy) JPEG ................. yes (plugin, using system library) PNG .................. yes (in QtGui, using system library) libinput................ no Logging backends: journald ............... no syslog ............... no mtdev .................. no Networking: getaddrinfo .......... yes getifaddrs ........... yes IPv6 ifname .......... yes libproxy.............. no OpenSSL .............. yes (loading libraries at run-time) NIS .................... yes OpenGL / OpenVG: EGL .................. no OpenGL ............... desktop OpenVG ............... no PCRE ................... yes (bundled copy) pkg-config ............. yes PulseAudio ............. no QPA backends: DirectFB ............. no EGLFS ................ no EGLFS i.MX6 ........ no EGLFS i.MX6 Wayland. no EGLFS EGLDevice .... no EGLFS GBM .......... no EGLFS Mali ......... no EGLFS Raspberry Pi . no EGLFS X11 .......... no LinuxFB .............. yes Mir client............ no XCB .................. yes (bundled copy) EGL on X ........... no GLX ................ yes MIT-SHM ............ yes Xcb-Xlib ........... yes Xcursor ............ yes (loaded at runtime) Xfixes ............. yes (loaded at runtime) Xi ................. no Xi2 ................ yes Xinerama ........... yes (loaded at runtime) Xrandr ............. yes (loaded at runtime) Xrender ............ yes XKB ................ yes XShape ............. yes XSync .............. yes XVideo ............. yes Session management ..... yes SQL drivers: DB2 .................. no InterBase ............ no MySQL ................ no OCI .................. no ODBC ................. yes (plugin) PostgreSQL ........... no SQLite 2 ............. no SQLite ............... yes (plugin, using bundled copy) TDS .................. no tslib .................. no udev ................... no xkbcommon-x11........... yes (bundled copy, XKB config root: /usr/share/X11/xkb) xkbcommon-evdev......... no zlib ................... yes (bundled copy)I've googled a lot about this issue but I did not find any solution to it.
Do you have any clues on how to fix this problem?Just to add more information, I'm linking Qt library dynamically. I created a directory containing all the necessary libraries (shared objects) and I'm setting the LD_LIBRARY_PATH to it before launching the application. I have a platforms directory at the same level of the executable with all platforms plugins.
Thanks in advance for your help!
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OpenGL / OpenVG: EGL .................. no OpenGL ............... desktop OpenVG ............... no PCRE ................... yes (bundled copy)your install summary say that EGL is not istalleg ... as show you the error messages
Search all dipendancy, all library install it on UBUNTU and remake the istallation using online tool for QT5.6
Regards
Giorgio -
Giorgio thanks for your reply.
I thought GLX was enough for enabling OpenGL on Desktop.
XCB .................. yes (bundled copy) EGL on X ........... no GLX ................ yesAnyway I tried to use EGL as opposed to GLX and I had the same issue. Here is the output of the configure in that case
Running configuration tests (phase 1)... Done running configuration tests. Creating qmake... Done. Running configuration tests (phase 2)... Done running configuration tests. Configure summary Build type: linux-g++-32 (i386, CPU features: none detected) Build options: Configuration .......... accessibility accessibility-atspi-bridge audio-backend avx c++11 clock-gettime clock-monotonic compile_examples concurrent dbus egl eglfs egl_x11 enable_new_dtags evdev eventfd fontconfig full-config getaddrinfo getifaddrs harfbuzz iconv inotify ipv6ifname large-config largefile linuxfb medium-config minimal-config mremap nis opengl openssl pcre png posix_fallocate precompile_header qpa qpa reduce_exports reduce_relocations release rpath shared small-config sse2 sse3 sse4_1 sse4_2 ssse3 system-freetype system-jpeg system-png threadsafe-cloexec xcb xcb-plugin xcb-qt xcb-xlib xinput2 xkbcommon-qt xlib xrender zlib Build parts ............ libs Mode ................... release Using sanitizer(s)...... none Using C++ standard ..... c++11 Using gold linker....... no Using new DTAGS ........ yes Using PCH .............. yes Using LTCG ............. no Target compiler supports: SSE2/SSE3/SSSE3 ...... yes/yes/yes SSE4.1/SSE4.2 ........ yes/yes AVX/AVX2 ............. yes/no Qt modules and options: Qt D-Bus ............... yes (loading dbus-1 at runtime) Qt Concurrent .......... yes Qt GUI ................. yes Qt Widgets ............. yes Large File ............. yes QML debugging .......... yes Use system proxies ..... no Support enabled for: Accessibility .......... yes ALSA ................... no CUPS ................... no Evdev .................. yes FontConfig ............. yes FreeType ............... yes (system library) Glib ................... no GStreamer .............. no GTK theme .............. no HarfBuzz ............... yes (bundled copy) Iconv .................. yes ICU .................... no Image formats: GIF .................. yes (plugin, using bundled copy) JPEG ................. yes (plugin, using system library) PNG .................. yes (in QtGui, using system library) libinput................ no Logging backends: journald ............... no syslog ............... no mtdev .................. no Networking: getaddrinfo .......... yes getifaddrs ........... yes IPv6 ifname .......... yes libproxy.............. no OpenSSL .............. yes (loading libraries at run-time) NIS .................... yes OpenGL / OpenVG: EGL .................. yes OpenGL ............... desktop OpenVG ............... no PCRE ................... yes (bundled copy) pkg-config ............. yes PulseAudio ............. no QPA backends: DirectFB ............. no EGLFS ................ yes EGLFS i.MX6 ........ no EGLFS i.MX6 Wayland. no EGLFS EGLDevice .... no EGLFS GBM .......... no EGLFS Mali ......... no EGLFS Raspberry Pi . no EGLFS X11 .......... yes LinuxFB .............. yes Mir client............ no XCB .................. yes (bundled copy) EGL on X ........... yes GLX ................ no MIT-SHM ............ yes Xcb-Xlib ........... yes Xcursor ............ yes (loaded at runtime) Xfixes ............. yes (loaded at runtime) Xi ................. no Xi2 ................ yes Xinerama ........... yes (loaded at runtime) Xrandr ............. yes (loaded at runtime) Xrender ............ yes XKB ................ yes XShape ............. yes XSync .............. yes XVideo ............. yes Session management ..... yes SQL drivers: DB2 .................. no InterBase ............ no MySQL ................ no OCI .................. no ODBC ................. yes (plugin) PostgreSQL ........... no SQLite 2 ............. no SQLite ............... yes (plugin, using bundled copy) TDS .................. no tslib .................. no udev ................... no xkbcommon-x11........... yes (bundled copy, XKB config root: /usr/share/X11/xkb) xkbcommon-evdev......... no zlib ................... yes (bundled copy)I'm building Qt 5.6 from scratch, I'm not using the online installer.
