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QT embedded simulate (up,down,left,right,enter) navigation

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  • S Offline
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    SGaist
    Lifetime Qt Champion
    wrote on 8 May 2015, 20:59 last edited by
    #17

    The exact error messages would be useful. Just to rule out the obvious: do you have the dbus daemon running ?

    The UI was written to be very keyboard friendly and had a lot thinking about focusing so as to make sense when moving from up to down and left to right. What kind of UI will that be ?

    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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      BluTiGeS
      wrote on 11 May 2015, 06:17 last edited by
      #18

      Okay, seems to be DBUS not running correctly:

      ./TestQTCross -platform linuxfb:fb"/dev/fb0"

      QIconvCodec::convertToUnicode: using Latin-1 for conversion, iconv_open failed
      QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv_open failed
      process 2302: D-Bus library appears to be incorrectly set up; failed to read machine uuid: Failed to open "/var/lib/dbus/machine-id": No such file or directory
      See the manual page for dbus-uuidgen to correct this issue.
      D-Bus not built with -rdynamic so unable to print a backtrace
      Aborted (core dumped)

      is the DBUS really needed for qt5 embedded? since it is not in 4.8?

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      • S Offline
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        SGaist
        Lifetime Qt Champion
        wrote on 12 May 2015, 20:30 last edited by
        #19

        The DBus module is also included in the 4 series however AFAIK it should not be mandatory for the linuxfb plugin but you also have another problem with iconv_open. Are you using the same version of libraries on your target than the one used to build Qt 5 ?

        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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          BluTiGeS
          wrote on 13 May 2015, 06:35 last edited by
          #20

          Hi,
          yes i am using the same ones.

          The configure command looks as follows:

          ./configure -release -opensource -confirm-license -arch arm -xplatform linux-arm-gnueabi-g++ -no-icu -no-pch -prefix /usr/local/Trolltech/qt5 -skip qtwebkit-examples -skip qtwebkit

          I have adapted the qmake.conf of the linux-arm-gnueabi-g++ to fit my cross compile toolchain.

          Do you see any issue?

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          • S Offline
            S Offline
            SGaist
            Lifetime Qt Champion
            wrote on 13 May 2015, 22:43 last edited by
            #21

            which platform plugins are built ?

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            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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              BluTiGeS
              wrote on 14 May 2015, 09:40 last edited by
              #22

              It is build only for linuxfb platform.

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              • S Offline
                S Offline
                SGaist
                Lifetime Qt Champion
                wrote on 16 May 2015, 20:40 last edited by
                #23

                How did you install Qt on your board ?

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                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                  BluTiGeS
                  wrote on 17 May 2015, 12:52 last edited by
                  #24

                  I normally just move over the files of the given configure path /usr/local/Trolltech/qt5 to the target board into the same directory.

                  I found out if I use dbus-uuidgen -ensure before calling the app it starts up without the DBUS warning but the icon warning is still there.

                  Also I cannot configure qt to work with webkit (see different post).

                  Regards

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                  • S Offline
                    S Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on 17 May 2015, 20:20 last edited by
                    #25

                    Did you use your device root filesystem to cross-compile build Qt 5 ? If not, you have probably used a different set of library than the one that's being used on your board

                    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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                      BluTiGeS
                      wrote on 18 May 2015, 14:21 last edited by
                      #26

                      How can I use it?

                      I have just used the above written configure command.

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                      • S Offline
                        S Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on 18 May 2015, 20:04 last edited by
                        #27

                        Add -sysroot /path/to/your/mounted/device/filesytem to your configure options

                        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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                          BluTiGeS
                          wrote on 20 May 2015, 10:03 last edited by BluTiGeS
                          #28

                          Thanks,

                          I have added it but now i get more and more errors.

                          So i changed back my config to following:
                          ./configure -xplatform linux-arm-gnueabi-g++ -release -opensource -confirm-license -prefix /usr/local/Trolltech/qt5 -make libs -skip qtwebkit-examples -nomake tests -qt-zlib -qt-libpng -qt-libjpeg -qt-freetype -linuxfb -no-opengl -icu

                          Configure summary

                          Building on: linux-g++ (i386, CPU features: none detected)
                          Building for: linux-arm-gnueabi-g++ (arm, CPU features: neon)
                          Platform notes:

                                  - Also available for Linux: linux-kcc linux-icc linux-cxx
                          

                          Build options:
                          Configuration .......... accessibility alsa audio-backend c++11 clock-gettime clock-monotonic compile_examples concurrent cross_compile dbus evdev eventfd freetype full-config getaddrinfo getifaddrs harfbuzz iconv icu inotify ipv6ifname large-config largefile linuxfb medium-config minimal-config mremap neon nis no-pkg-config openssl pcre png posix_fallocate precompile_header qpa qpa reduce_exports release rpath shared small-config xlib xrender zlib
                          Build parts ............ libs
                          Mode ................... release
                          Using C++11 ............ yes
                          Using gold linker....... no
                          Using PCH .............. yes
                          Target compiler supports:
                          Neon ................. yes

                          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 ................... yes
                          CUPS ................... no
                          Evdev .................. yes
                          FontConfig ............. no
                          FreeType ............... qt
                          Glib ................... no
                          GTK theme .............. no
                          HarfBuzz ............... yes (bundled copy)
                          Iconv .................. yes
                          ICU .................... yes
                          Image formats:
                          GIF .................. yes (plugin, using bundled copy)
                          JPEG ................. yes (plugin, using bundled copy)
                          PNG .................. yes (in QtGui, using bundled copy)
                          journald ............... no
                          mtdev .................. no
                          Networking:
                          getaddrinfo .......... yes
                          getifaddrs ........... yes
                          IPv6 ifname .......... yes
                          OpenSSL .............. yes (loading libraries at run-time)
                          NIS .................... yes
                          OpenGL / OpenVG:
                          EGL .................. no
                          OpenGL ............... no
                          OpenVG ............... no
                          PCRE ................... yes (bundled copy)
                          pkg-config ............. no
                          PulseAudio ............. no
                          QPA backends:
                          DirectFB ............. no
                          EGLFS ................ no
                          KMS .................. no
                          LinuxFB .............. yes
                          XCB .................. no
                          Session management ..... yes
                          SQL drivers:
                          DB2 .................. no
                          InterBase ............ no
                          MySQL ................ no
                          OCI .................. no
                          ODBC ................. no
                          PostgreSQL ........... yes (plugin)
                          SQLite 2 ............. yes (plugin)
                          SQLite ............... yes (plugin, using bundled copy)
                          TDS .................. no
                          udev ................... no
                          xkbcommon .............. no
                          zlib ................... yes (bundled copy)

                          But if I now do a make -j 4 I get an ICU warning, but ICU is needed for webkit, which I also need.

                          I../3rdparty/md4 -I../3rdparty/sha3 -I.moc -I../../mkspecs/linux-arm-gnueabi-g++ -o .obj/pcre16_compile.o ../3rdparty/pcre/pcre16_compile.c
                          tools/qtimezoneprivate_icu.cpp: In function ‘bool ucalOffsetsAtTime(void**, qint64, int*, int*)’:
                          tools/qtimezoneprivate_icu.cpp:145: error: ‘ucal_clone’ was not declared in this scope
                          tools/qtimezoneprivate_icu.cpp: In copy constructor ‘QIcuTimeZonePrivate::QIcuTimeZonePrivate(const QIcuTimeZonePrivate&)’:
                          tools/qtimezoneprivate_icu.cpp:285: error: ‘ucal_clone’ was not declared in this scope
                          tools/qtimezoneprivate_icu.cpp: In member function ‘virtual bool QIcuTimeZonePrivate::isDaylightTime(qint64) const’:
                          tools/qtimezoneprivate_icu.cpp:378: error: ‘ucal_clone’ was not declared in this scope
                          make[2]: *** [.obj/qtimezoneprivate_icu.o] Error 1
                          make[2]: *** Waiting for unfinished jobs....
                          make[2]: Leaving directory /home/qt/qt-everywhere-opensource-src-5.4.1/qtbase/src/corelib' make[1]: *** [sub-corelib-make_first] Error 2 make[1]: Leaving directory /home/qt/qt-everywhere-opensource-src-5.4.1/qtbase/src'
                          make: *** [sub-src-make_first] Error 2

                          EDIT:
                          I have updated the icu using the following Cross Tutorial
                          http://thebugfreeblog.blogspot.de/2013/05/cross-building-icu-for-applications-on.html

                          now I added the following to the configure :
                          -icu -I /opt/icuCrossFinal/include -L /opt/icuCrossFinal/lib

                          Now I got a bit further, I also needed a new linux-atomic version.

                          I keep you updated on webkit configure,

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                          • B Offline
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                            BluTiGeS
                            wrote on 21 May 2015, 06:52 last edited by BluTiGeS
                            #29

                            Now I got the qtbase and webkit compiled, but If i want to start the app via

                            ./app -qpa linuxfb:/dev/fb0 it says:

                            This application failed to start because it could not find or load the Qt platform plugin "xcb".

                            I checked the dependencies on my Ubuntu 11.04 and I found that Ubuntu is unalbe to locate :
                            Unable to locate package libxcb-icccm4
                            Unable to locate package libxcb-icccm4-dev

                            I then run the configure with -no-xcb and all worked well so far.

                            But now if I start the application :

                            ./app -qpa linuxfb:fb=/dev/fb0

                            The screen is not using the full framebuffer (no fullscreen) it seems it is only using 2/3 of it an the rest is cut off.
                            With qt4 all works as expected.

                            Any idea why this happens?

                            Is xcb required for a webkit usage on linuxfb?

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                            • S Offline
                              S Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on 23 May 2015, 21:55 last edited by
                              #30

                              The plugin might have problem to detect the screen size

                              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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                              • B Offline
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                                BluTiGeS
                                wrote on 27 May 2015, 09:50 last edited by
                                #31

                                Any Idea how to fix this?
                                Also it seems qt5 is a bit slower then qt4, but I thought it should be faster.

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                                • S Offline
                                  S Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on 28 May 2015, 21:45 last edited by
                                  #32

                                  Did you try to give the screen size to the plugin ?

                                  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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                                    BluTiGeS
                                    wrote on 29 May 2015, 06:52 last edited by
                                    #33

                                    yep, but no influence it changes only to smaller sizes but not to the larger screen size like it should.

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                                    • S Offline
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                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on 29 May 2015, 23:03 last edited by
                                      #34

                                      Looks like a bug, you should check on the bug report 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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                                      18 May 2015, 14:21

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