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Qt app without window manager.

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  • SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #19

    You can build a static library but still have shared dependency.

    IIRC you need to tell your application which plugin you want to use

    Interested in AI ? www.idiap.ch
    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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    • C Offline
      C Offline
      Cyrilb
      wrote on last edited by
      #20

      Ok, but why is qt still trying to use xcb, i built it for linuxfb?

      My build configuration is:
      @./configure -opensource -release -force-debug-info -confirm-license -static -qt-sql-mysql -qt-zlib -qt-libpng -qt-libjpeg -no-openssl -no-pch -linuxfb -nomake examples -nomake tests
      @

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      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #21

        Just wild guess, but it might be that linuxfb is built additionally to xcb

        Interested in AI ? www.idiap.ch
        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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        • C Offline
          C Offline
          Cyrilb
          wrote on last edited by
          #22

          I just finnished rebuilding a fresh copy and if put -no-xcb the compilation fails with error:
          @g++ -Wl,-rpath-link,/qt51/qtjsbackend/lib -o ../../bin/qmlplugindump .obj/release-static/main.o .obj/release-static/qmlstreamwriter.o .obj/release-static/qmlplugindump_plugin_import.o -L/qt51/qtdeclarative/lib -lQt5Quick -L/qt51/qtbase/lib -L/qt51/qtjsbackend/lib -lQt5Qml -lQt5V8 -lQt5Network -L/qt51/qtbase/plugins/platforms -lqminimal -lQt5PlatformSupport -lfontconfig -lfreetype -lXext -lX11 -lXrender -lQt5Gui -lQt5Core -licui18n -licuuc -lm -ldl -pthread -lgthread-2.0 -lglib-2.0 -lrt -lGL -lpthread
          /usr/bin/ld: cannot find -lqxcb
          collect2: error: ld returned 1 exit status
          make[3]: *** [../../bin/qmlscene] Error 1
          make[3]: Leaving directory /qt51/qtdeclarative/tools/qmlscene' make[2]: *** [sub-qmlscene-make_first] Error 2 make[2]: *** Waiting for unfinished jobs.... /qt51/qtbase/lib/libQt5Gui.a(qimage.o): In function memset':
          /usr/include/i386-linux-gnu/bits/string3.h:81: warning: memset used with constant zero length parameter; this could be due to transposed parameters
          make[3]: Leaving directory /qt51/qtdeclarative/tools/qmlplugindump' make[2]: Leaving directory /qt51/qtdeclarative/tools'
          make[1]: *** [sub-tools-make_first] Error 2
          make[1]: Leaving directory `/qt51/qtdeclarative'
          make: *** [module-qtdeclarative-make_first] Error 2
          @

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #23

            Did you cleanup before rebuilding ?

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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            • C Offline
              C Offline
              Cyrilb
              wrote on last edited by
              #24

              It was a fresh build in a new directory.

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #25

                Did you try with -qpa linuxfb ?

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                • C Offline
                  C Offline
                  Cyrilb
                  wrote on last edited by
                  #26

                  This is my configuration now:
                  @sudo ./configure -opensource -release -force-debug-info -confirm-license -static -qt-sql-mysql -qt-zlib -qt-libpng -qt-libjpeg -no-openssl -no-pch -qpa linuxfb -no-xcb -nomake examples -nomake tests@

                  @Build options:
                  Configuration .......... accessibility alsa audio-backend avx avx2 c++11 clock-gettime

                  clock-monotonic compile_examples concurrent cups dbus evdev eventfd fontconfig

                  force_debug_info full-config getaddrinfo getifaddrs gif glib gstreamer gtk2 gtkstyle iconv

                  icu inotify ipv6ifname jpeg large-config largefile linuxfb medium-config minimal-config

                  mremap nis opengl pcre png pulseaudio qpa qpa reduce_exports reduce_relocations release rpath

                  small-config sse2 sse3 sse4_1 sse4_2 ssse3 static system-freetype v8 v8snapshot xlib xrender

                  zlib
                  Build parts ............ libs tools
                  Mode ................... release (with debug info)
                  Using C++11 ............ yes
                  Using PCH .............. no
                  Target compiler supports:
                  SSE2/SSE3/SSSE3 ...... yes/yes/yes
                  SSE4.1/SSE4.2 ........ yes/yes
                  AVX/AVX2 ............. yes/yes

                  Qt modules and options:
                  Qt D-Bus ............... yes (loading dbus-1 at runtime)
                  Qt Concurrent .......... yes
                  Qt GUI ................. yes
                  Qt Widgets ............. yes
                  JavaScriptCore JIT ..... yes (To be decided by JavaScriptCore)
                  QML debugging .......... yes
                  Use system proxies ..... no

                  Support enabled for:
                  Accessibility .......... yes
                  ALSA ................... yes
                  CUPS ................... yes
                  FontConfig ............. yes
                  Iconv .................. yes
                  ICU .................... yes
                  Image formats:
                  GIF .................. yes (in QtGui, using system library)
                  JPEG ................. yes (in QtGui, using bundled copy)
                  PNG .................. yes (in QtGui, using bundled copy)
                  Glib ................... yes
                  GStreamer .............. yes
                  GTK theme .............. yes
                  Large File ............. yes
                  libudev ................ no
                  Networking:
                  getaddrinfo .......... yes
                  getifaddrs ........... yes
                  IPv6 ifname .......... yes
                  OpenSSL .............. no
                  NIS .................... yes
                  OpenGL ................. desktop
                  OpenVG ................. no
                  PCRE ................... yes (bundled copy)
                  pkg-config ............. yes
                  PulseAudio ............. yes
                  QPA backends:
                  DirectFB ............. no
                  EGLFS ................ no
                  KMS .................. no
                  LinuxFB .............. yes
                  XCB .................. no
                  Session management ..... yes
                  SQL drivers:
                  DB2 .................. no
                  InterBase ............ no
                  MySQL ................ qt
                  OCI .................. no
                  ODBC ................. no
                  PostgreSQL ........... no
                  SQLite 2 ............. no
                  SQLite ............... yes (plugin, using bundled copy)
                  TDS .................. no
                  udev ................... no
                  xkbcommon .............. no
                  zlib ................... yes (bundled copy)
                  @

                  It is building now, fingers crossed.

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                  • C Offline
                    C Offline
                    Cyrilb
                    wrote on last edited by
                    #27

                    So far so great.

                    I built twice. It failed the first time because i forgot to ommit the webkit, pfff.

                    The second time it build perfectly with the above configuration. Thanks SGaist.

                    So i quickly built a simple gui app and copied it in the target system and voila a window appeared :) .

                    But, still a but, i don't have a mouse and keyboard. And the system is stuck at this point.

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #28

                      Great !

                      You can also move/remove the webkit folder if you want to avoid that.

                      Are both detected on your target system ?

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                      • C Offline
                        C Offline
                        Cyrilb
                        wrote on last edited by
                        #29

                        My target system is just a console system. I guess at least the keyboard should be ok because i am able to launch it.

                        How can i check if mouse is detected also?

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                        • C Offline
                          C Offline
                          Cyrilb
                          wrote on last edited by
                          #30

                          Update:

                          AnalogClock example runs ok. I mean that the clock ticks.

                          I changed my app by placing a QLineEdit and i can see the cursor in the QLineEdit blinking but i can't type nor move the mouse.

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                          • C Offline
                            C Offline
                            Cyrilb
                            wrote on last edited by
                            #31

                            Update: yes mouse is detected on the target system.

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                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #32

                              What kind of device is reported ? (/dev/mouse or... ?)

                              Interested in AI ? www.idiap.ch
                              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                              • C Offline
                                C Offline
                                Cyrilb
                                wrote on last edited by
                                #33

                                Yes /dev/mouse2 .

                                There is also /dev/mouse1 but it appers that the correct one is /dev/mouse2

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                                • SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #34

                                  Then you might need to setup that information before starting your application but I don't know if Qt 5 has the same set of variables / command line options as Qt 4 for that, sorry.

                                  Interested in AI ? www.idiap.ch
                                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                                  • C Offline
                                    C Offline
                                    Cyrilb
                                    wrote on last edited by
                                    #35

                                    Ok, thanks a lot. You've been very helpful.

                                    I will start a new thread for this problem.

                                    Edit: Follow "this thread":http://qt-project.org/forums/viewthread/31911/ for mouse and keyboard problem.

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