QtVirtualKeyboard is shown on desktop but not on Raspberry pi 3 ?
Unsolved
Mobile and Embedded
-
Hi everyone.
I just want to use theqtvirtualkeyboardon my widget-based application inraspberry pi 3b+it will show nicely on desktop(ubuntu16.04) but not on my embedded Linux ?!
Becauseqtvirtualkeyboardis a dedicated top-level window, I'm usingxcbplatform plugin on the embedded side.
So what do you suggest?Configuration
- OS:
Raspbian stretch - Qt:
5.8.0 cross-compiled - Plugin:
xcb (without eglfs)
Qt configure summary:Building on: linux-g++ (x86_64, CPU features: mmx sse sse2) Building for: devices/linux-rpi3-g++ (arm, CPU features: neon) Configuration: cross_compile compile_examples enable_new_dtags largefile neon precompile_header shared rpath accessibility release c++11 concurrent dbus mremap reduce_exports stl Build options: Mode ................................... release Building shared libraries .............. yes Using C++ standard ..................... C++11 Using gold linker ...................... no Using new DTAGS ........................ yes Using precompiled headers .............. yes Using LTCG ............................. no Target compiler supports: NEON ................................. yes Build parts ............................ libs Qt modules and options: Qt Concurrent .......................... yes Qt D-Bus ............................... yes Qt D-Bus directly linked to libdbus .... no Qt Gui ................................. yes Qt Network ............................. yes Qt Sql ................................. yes Qt Testlib ............................. yes Qt Widgets ............................. yes Qt Xml ................................. yes Support enabled for: Accessibility .......................... yes Using pkg-config ....................... yes QML debugging .......................... yes udev ................................... yes Using system zlib ...................... yes Qt Core: DoubleConversion ....................... yes Using system DoubleConversion ........ yes GLib ................................... no iconv .................................. yes ICU .................................... no Logging backends: journald ............................. no syslog ............................... no slog2 ................................ no Using system PCRE ...................... yes Qt Network: getaddrinfo() .......................... yes getifaddrs() ........................... yes IPv6 ifname ............................ yes libproxy ............................... no OpenSSL ................................ yes Qt directly linked to OpenSSL ........ no SCTP ................................... no Use system proxies ..................... yes Qt Sql: DB2 (IBM) .............................. no InterBase .............................. no MySql .................................. no OCI (Oracle) ........................... no ODBC ................................... no PostgreSQL ............................. no SQLite2 ................................ yes SQLite ................................. yes Using system provided SQLite ......... no TDS (Sybase) ........................... no Qt Gui: FreeType ............................... yes Using system FreeType ................ yes HarfBuzz ............................... yes Using system HarfBuzz ................ yes Fontconfig ............................. yes Image formats: GIF .................................. yes ICO .................................. yes JPEG ................................. yes Using system libjpeg ............... yes PNG .................................. yes Using system libpng ................ yes OpenGL: EGL .................................. yes Desktop OpenGL ....................... yes OpenGL ES 2.0 ........................ no OpenGL ES 3.0 ........................ no OpenGL ES 3.1 ........................ no Session Management ..................... yes Features used by QPA backends: evdev .................................. yes libinput ............................... yes mtdev .................................. yes tslib .................................. yes xkbcommon-evdev ........................ yes QPA backends: DirectFB ............................... no EGLFS .................................. no LinuxFB ................................ yes Mir client ............................. no X11: Using system-provided XCB libraries .. yes EGL on X11 ........................... yes Xinput2 .............................. yes XCB XKB .............................. yes XLib ................................. yes XCB render ........................... yes XCB GLX .............................. yes XCB Xlib ............................. yes Using system-provided xkbcommon ...... no Qt Widgets: GTK+ ................................... no Styles ................................. Fusion Windows Qt PrintSupport: CUPS ................................... yes Qt QML: QML interpreter ........................ yes QML network support .................... yes Qt Quick: Direct3D 12 ............................ no AnimatedImage item ..................... yes Canvas item ............................ yes Support for Quick Designer ............. yes Flipable item .......................... yes GridView item .......................... yes ListView item .......................... yes Path support ........................... yes PathView item .......................... yes Positioner items ....................... yes ShaderEffect item ...................... yes Sprite item ............................ yes Qt Multimedia: ALSA ................................... yes GStreamer 1.0 .......................... no GStreamer 0.10 ......................... no Video for Linux ........................ yes OpenAL ................................. no PulseAudio ............................. no Resource Policy (libresourceqt5) ....... no DirectShow ............................. no Windows Media Foundation ............... noNote: I also set
QT_DEBUG_PLUGINSto 1 and confirm thatlibqtvirtualkeyboardplugin.sosuccessfully loaded. - OS:
-
@iman4k
looking at your configure summary I would say you did not cross compile the qtvirtualkeyboard module
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@iman4k
looking at your configure summary I would say you did not cross compile the qtvirtualkeyboard moduleHi @j-hilk
Why is that?
I cross compile whole Qt with the device option.If you say for
EGLFS, I reconfiguredQtto just enableEGLFSandOpenGL ES 2.0alongside thexcbplugin:Building on: linux-g++ (x86_64, CPU features: mmx sse sse2) Building for: devices/linux-rpi3-g++ (arm, CPU features: neon) Configuration: cross_compile compile_examples enable_new_dtags largefile neon precompile_header shared rpath accessibility release c++11 concurrent dbus mremap reduce_exports stl Build options: Mode ................................... release Building shared libraries .............. yes Using C++ standard ..................... C++11 Using gold linker ...................... no Using new DTAGS ........................ yes Using precompiled headers .............. yes Using LTCG ............................. no Target compiler supports: NEON ................................. yes Build parts ............................ libs Qt modules and options: Qt Concurrent .......................... yes Qt D-Bus ............................... yes Qt D-Bus directly linked to libdbus .... no Qt Gui ................................. yes Qt Network ............................. yes Qt Sql ................................. yes Qt Testlib ............................. yes Qt Widgets ............................. yes Qt Xml ................................. yes Support enabled for: Accessibility .......................... yes Using pkg-config ....................... yes QML debugging .......................... yes udev ................................... yes Using system zlib ...................... yes Qt Core: DoubleConversion ....................... yes Using system DoubleConversion ........ yes GLib ................................... no iconv .................................. yes ICU .................................... no Logging backends: journald ............................. no syslog ............................... no slog2 ................................ no Using system PCRE ...................... yes Qt Network: getaddrinfo() .......................... yes getifaddrs() ........................... yes IPv6 ifname ............................ yes libproxy ............................... no OpenSSL ................................ yes Qt directly linked to OpenSSL ........ no SCTP ................................... no Use system proxies ..................... yes Qt Sql: DB2 (IBM) .............................. no InterBase .............................. no MySql .................................. no OCI (Oracle) ........................... no ODBC ................................... yes PostgreSQL ............................. yes SQLite2 ................................ yes SQLite ................................. yes Using system provided SQLite ......... no TDS (Sybase) ........................... yes Qt Gui: FreeType ............................... yes Using system FreeType ................ yes HarfBuzz ............................... yes Using system HarfBuzz ................ yes Fontconfig ............................. yes Image formats: GIF .................................. yes ICO .................................. yes JPEG ................................. yes Using system libjpeg ............... yes PNG .................................. yes Using system libpng ................ yes OpenGL: EGL .................................. yes Desktop OpenGL ....................... no OpenGL ES 2.0 ........................ yes OpenGL ES 3.0 ........................ yes OpenGL ES 3.1 ........................ yes Session Management ..................... yes Features used by QPA backends: evdev .................................. yes libinput ............................... yes mtdev .................................. yes tslib .................................. yes xkbcommon-evdev ........................ yes QPA backends: DirectFB ............................... no EGLFS .................................. yes EGLFS details: EGLFS i.Mx6 .......................... no EGLFS i.Mx6 Wayland .................. no EGLFS EGLDevice ...................... yes EGLFS GBM ............................ yes EGLFS Mali ........................... no EGLFS Raspberry Pi ................... no EGL on X11 ........................... yes LinuxFB ................................ yes Mir client ............................. no X11: Using system-provided XCB libraries .. yes EGL on X11 ........................... yes Xinput2 .............................. yes XCB XKB .............................. yes XLib ................................. yes XCB render ........................... yes XCB GLX .............................. yes XCB Xlib ............................. yes Using system-provided xkbcommon ...... no Qt Widgets: GTK+ ................................... no Styles ................................. Fusion Windows Qt PrintSupport: CUPS ................................... yes Qt QML: QML interpreter ........................ yes QML network support .................... yes Qt Quick: Direct3D 12 ............................ no AnimatedImage item ..................... yes Canvas item ............................ yes Support for Quick Designer ............. yes Flipable item .......................... yes GridView item .......................... yes ListView item .......................... yes Path support ........................... yes PathView item .......................... yes Positioner items ....................... yes ShaderEffect item ...................... yes Sprite item ............................ yes Qt Multimedia: ALSA ................................... yes GStreamer 1.0 .......................... no GStreamer 0.10 ......................... no Video for Linux ........................ yes OpenAL ................................. no PulseAudio ............................. no Resource Policy (libresourceqt5) ....... no DirectShow ............................. no Windows Media Foundation ............... no -
Hi @j-hilk
Why is that?
I cross compile whole Qt with the device option.If you say for
EGLFS, I reconfiguredQtto just enableEGLFSandOpenGL ES 2.0alongside thexcbplugin:Building on: linux-g++ (x86_64, CPU features: mmx sse sse2) Building for: devices/linux-rpi3-g++ (arm, CPU features: neon) Configuration: cross_compile compile_examples enable_new_dtags largefile neon precompile_header shared rpath accessibility release c++11 concurrent dbus mremap reduce_exports stl Build options: Mode ................................... release Building shared libraries .............. yes Using C++ standard ..................... C++11 Using gold linker ...................... no Using new DTAGS ........................ yes Using precompiled headers .............. yes Using LTCG ............................. no Target compiler supports: NEON ................................. yes Build parts ............................ libs Qt modules and options: Qt Concurrent .......................... yes Qt D-Bus ............................... yes Qt D-Bus directly linked to libdbus .... no Qt Gui ................................. yes Qt Network ............................. yes Qt Sql ................................. yes Qt Testlib ............................. yes Qt Widgets ............................. yes Qt Xml ................................. yes Support enabled for: Accessibility .......................... yes Using pkg-config ....................... yes QML debugging .......................... yes udev ................................... yes Using system zlib ...................... yes Qt Core: DoubleConversion ....................... yes Using system DoubleConversion ........ yes GLib ................................... no iconv .................................. yes ICU .................................... no Logging backends: journald ............................. no syslog ............................... no slog2 ................................ no Using system PCRE ...................... yes Qt Network: getaddrinfo() .......................... yes getifaddrs() ........................... yes IPv6 ifname ............................ yes libproxy ............................... no OpenSSL ................................ yes Qt directly linked to OpenSSL ........ no SCTP ................................... no Use system proxies ..................... yes Qt Sql: DB2 (IBM) .............................. no InterBase .............................. no MySql .................................. no OCI (Oracle) ........................... no ODBC ................................... yes PostgreSQL ............................. yes SQLite2 ................................ yes SQLite ................................. yes Using system provided SQLite ......... no TDS (Sybase) ........................... yes Qt Gui: FreeType ............................... yes Using system FreeType ................ yes HarfBuzz ............................... yes Using system HarfBuzz ................ yes Fontconfig ............................. yes Image formats: GIF .................................. yes ICO .................................. yes JPEG ................................. yes Using system libjpeg ............... yes PNG .................................. yes Using system libpng ................ yes OpenGL: EGL .................................. yes Desktop OpenGL ....................... no OpenGL ES 2.0 ........................ yes OpenGL ES 3.0 ........................ yes OpenGL ES 3.1 ........................ yes Session Management ..................... yes Features used by QPA backends: evdev .................................. yes libinput ............................... yes mtdev .................................. yes tslib .................................. yes xkbcommon-evdev ........................ yes QPA backends: DirectFB ............................... no EGLFS .................................. yes EGLFS details: EGLFS i.Mx6 .......................... no EGLFS i.Mx6 Wayland .................. no EGLFS EGLDevice ...................... yes EGLFS GBM ............................ yes EGLFS Mali ........................... no EGLFS Raspberry Pi ................... no EGL on X11 ........................... yes LinuxFB ................................ yes Mir client ............................. no X11: Using system-provided XCB libraries .. yes EGL on X11 ........................... yes Xinput2 .............................. yes XCB XKB .............................. yes XLib ................................. yes XCB render ........................... yes XCB GLX .............................. yes XCB Xlib ............................. yes Using system-provided xkbcommon ...... no Qt Widgets: GTK+ ................................... no Styles ................................. Fusion Windows Qt PrintSupport: CUPS ................................... yes Qt QML: QML interpreter ........................ yes QML network support .................... yes Qt Quick: Direct3D 12 ............................ no AnimatedImage item ..................... yes Canvas item ............................ yes Support for Quick Designer ............. yes Flipable item .......................... yes GridView item .......................... yes ListView item .......................... yes Path support ........................... yes PathView item .......................... yes Positioner items ....................... yes ShaderEffect item ...................... yes Sprite item ............................ yes Qt Multimedia: ALSA ................................... yes GStreamer 1.0 .......................... no GStreamer 0.10 ......................... no Video for Linux ........................ yes OpenAL ................................. no PulseAudio ............................. no Resource Policy (libresourceqt5) ....... no DirectShow ............................. no Windows Media Foundation ............... no@iman4k
I don't know, I'm not a cross compile expert by any means.
I'm just telling you want I can see from the configure you posted.Anyway, should be easy enough to add
according to this
https://doc.qt.io/qt-5/qtvirtualkeyboard-build.htmlyou can simply open the qtvirtualkeyboard source project with QtCreator and compile it, using your cross compile kit
