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  1. 30th March 2009, 12:52 #1
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    rishiraj
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    Default Re: "Error opening framebuffer device"

    Hi,
    Thanks for the advice.Got a bit of confusion though....does the 'fb0' folder/file pre exist in /dev.I thought it was created after we configured 'qvfb' or something like that.
    If everything seems to be going well, you have obviously overlooked something.
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  2. 1st April 2009, 05:05 #2
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    Question error while configuring 'qvfb'

    Hi,
    I got rid of the error I mentioned in my previous posts(about not being able to find 'lXtst')...now it's showing me the errors copied below.
    Qt Code: 
    1. [root@localhost ~]# cd /root/Desktop/qt-x11/tools/qvfb
    2. [root@localhost qvfb]# qmake qvfb.pro
    3. [root@localhost qvfb]# make
    4. g++ -Wl,-O1 -Wl,-rpath,/usr/local/Trolltech/QtEmbedded-4.5.0-tp1/lib -o ../../bin/qvfb qvfb.o qvfbview.o qvfbratedlg.o main.o qanimationwriter.o qvfbprotocol.o qvfbshmem.o qvfbmmap.o qlock.o qwssignalhandler.o qvfbx11view.o x11keyfaker.o moc_qvfb.o moc_qvfbview.o moc_qvfbratedlg.o moc_gammaview.o moc_qvfbprotocol.o moc_qvfbshmem.o moc_qvfbmmap.o moc_qvfbx11view.o moc_x11keyfaker.o qrc_qvfb.o qrc_ClamshellPhone.o qrc_PDAPhone.o qrc_SmartPhone2.o qrc_SmartPhone.o qrc_SmartPhoneWithButtons.o qrc_TouchscreenPhone.o qrc_Trolltech-Keypad.o qrc_Trolltech-Touchscreen.o qrc_PortableMedia.o    -L/usr/local/Trolltech/QtEmbedded-4.5.0-tp1/lib -lXtst -lQtGui -L/usr/local/Trolltech/QtEmbedded-4.5.0-tp1/lib -lpng -lfreetype -lQtNetwork -lQtCore -lz -lm -lrt -ldl -lpthread
    5. qvfb.o: In function `QVFb::setZoom(double)':
    6. qvfb.cpp:(.text+0x4a6): undefined reference to `DeviceSkin::setTransform(QMatrix const&)'
    7. qvfb.o: In function `QVFb::enableCursor(bool)':
    8. qvfb.cpp:(.text+0x74b): undefined reference to `DeviceSkin::hasCursor() const'
    9. qvfb.o: In function `QVFb::skinConfigChosen(int)':
    10. qvfb.cpp:(.text+0x3fb2): undefined reference to `DeviceSkinParameters::read(QString const&, DeviceSkinParameters::ReadMode, QString*)'
    11. qvfb.o: In function `QVFb::init(int, int, int, int, int, QString const&)':
    12. qvfb.cpp:(.text+0x6bbe): undefined reference to `DeviceSkinParameters::read(QString const&, DeviceSkinParameters::ReadMode, QString*)'
    13. qvfb.cpp:(.text+0x6bea): undefined reference to `DeviceSkin::DeviceSkin(DeviceSkinParameters const&, QWidget*)'
    14. qvfb.cpp:(.text+0x6cf7): undefined reference to `DeviceSkin::setView(QWidget*)'
    15. qvfb.cpp:(.text+0x70a1): undefined reference to `DeviceSkinParameters::hasSecondaryScreen() const'
    16. qvfb.cpp:(.text+0x71ee): undefined reference to `DeviceSkinParameters::secondaryScreenSize() const'
    17. qvfb.cpp:(.text+0x7267): undefined reference to `DeviceSkin::setSecondaryView(QWidget*)'
    18. qvfbx11view.o: In function `QVFbX11View::startXnest()':
    19. qvfbx11view.cpp:(.text+0x1f96): undefined reference to `QX11Info::display()'
    20. qvfbx11view.cpp:(.text+0x1fa1): undefined reference to `QX11Info::appScreen()'
    21. qvfbx11view.cpp:(.text+0x1fb6): undefined reference to `QX11Info::display()'
    22. qvfbx11view.cpp:(.text+0x1fc1): undefined reference to `QX11Info::appScreen()'
    23. qvfbx11view.cpp:(.text+0x1fec): undefined reference to `QX11Info::display()'
    24. qvfbx11view.cpp:(.text+0x2037): undefined reference to `QX11Info::display()'
    25. qvfbx11view.cpp:(.text+0x2055): undefined reference to `QX11Info::appVisual(int)'
    26. qvfbx11view.cpp:(.text+0x205c): undefined reference to `QX11Info::display()'
    27. qvfbx11view.cpp:(.text+0x2067): undefined reference to `QX11Info::appScreen()'
    28. qvfbx11view.cpp:(.text+0x214a): undefined reference to `QX11Info::display()'
    29. qvfbx11view.cpp:(.text+0x2155): undefined reference to `QX11Info::appScreen()'
    30. qvfbx11view.cpp:(.text+0x2276): undefined reference to `QX11Info::display()'
    31. moc_qvfb.o:(.rodata._ZTV4QVFb[vtable for QVFb]+0xb0): undefined reference to `QWidget::x11Event(_XEvent*)'
    32. moc_qvfb.o:(.rodata._ZTV6Zoomer[vtable for Zoomer]+0xb0): undefined reference to `QWidget::x11Event(_XEvent*)'
    33. moc_qvfbview.o:(.rodata._ZTV8QVFbView[vtable for QVFbView]+0xb0): undefined reference to `QWidget::x11Event(_XEvent*)'
    34. moc_qvfbview.o:(.rodata._ZTV16QVFbAbstractView[vtable for QVFbAbstractView]+0xb0): undefined reference to `QWidget::x11Event(_XEvent*)'
    35. moc_qvfbratedlg.o:(.rodata._ZTV14QVFbRateDialog[vtable for QVFbRateDialog]+0xb0): undefined reference to `QWidget::x11Event(_XEvent*)'
    36. moc_gammaview.o:(.rodata._ZTV9GammaView[vtable for GammaView]+0xb0): more undefined references to `QWidget::x11Event(_XEvent*)' follow
    37. collect2: ld returned 1 exit status
    38. make: *** [../../bin/qvfb] Error 1
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    Can't figure out what to do about it.Please advice.
    Thanks.
    If everything seems to be going well, you have obviously overlooked something.
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  3. 1st April 2009, 05:50 #3
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    rishiraj
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    Default (update)

    Hi,
    copied the 'deviceskin.h and deviceskin.cpp files from ...tools/shared to ..tools/qvfb and added their names to qvfb.pro and did 'qmake' and 'make' again which has reduced the number of errors/messages.
    Qt Code: 
    1. [root@localhost qvfb]# make
    2. g++ -Wl,-O1 -Wl,-rpath,/usr/local/Trolltech/QtEmbedded-4.5.0-tp1/lib -o ../../bin/qvfb qvfb.o qvfbview.o qvfbratedlg.o main.o qanimationwriter.o qvfbprotocol.o qvfbshmem.o qvfbmmap.o qlock.o qwssignalhandler.o deviceskin.o qvfbx11view.o x11keyfaker.o moc_qvfb.o moc_qvfbview.o moc_qvfbratedlg.o moc_gammaview.o moc_qvfbprotocol.o moc_qvfbshmem.o moc_qvfbmmap.o moc_deviceskin.o moc_qvfbx11view.o moc_x11keyfaker.o qrc_qvfb.o qrc_ClamshellPhone.o qrc_PDAPhone.o qrc_SmartPhone2.o qrc_SmartPhone.o qrc_SmartPhoneWithButtons.o qrc_TouchscreenPhone.o qrc_Trolltech-Keypad.o qrc_Trolltech-Touchscreen.o qrc_PortableMedia.o    -L/usr/local/Trolltech/QtEmbedded-4.5.0-tp1/lib -lXtst -lQtGui -L/usr/local/Trolltech/QtEmbedded-4.5.0-tp1/lib -lpng -lfreetype -lQtNetwork -lQtCore -lz -lm -lrt -ldl -lpthread
    3. deviceskin.o:(.rodata._ZTVN13qvfb_internal12CursorWindowE[vtable for qvfb_internal::CursorWindow]+0xb0): undefined reference to `QWidget::x11Event(_XEvent*)'
    4. qvfbx11view.o: In function `QVFbX11View::startXnest()':
    5. qvfbx11view.cpp:(.text+0x1f96): undefined reference to `QX11Info::display()'
    6. qvfbx11view.cpp:(.text+0x1fa1): undefined reference to `QX11Info::appScreen()'
    7. qvfbx11view.cpp:(.text+0x1fb6): undefined reference to `QX11Info::display()'
    8. qvfbx11view.cpp:(.text+0x1fc1): undefined reference to `QX11Info::appScreen()'
    9. qvfbx11view.cpp:(.text+0x1fec): undefined reference to `QX11Info::display()'
    10. qvfbx11view.cpp:(.text+0x2037): undefined reference to `QX11Info::display()'
    11. qvfbx11view.cpp:(.text+0x2055): undefined reference to `QX11Info::appVisual(int)'
    12. qvfbx11view.cpp:(.text+0x205c): undefined reference to `QX11Info::display()'
    13. qvfbx11view.cpp:(.text+0x2067): undefined reference to `QX11Info::appScreen()'
    14. qvfbx11view.cpp:(.text+0x214a): undefined reference to `QX11Info::display()'
    15. qvfbx11view.cpp:(.text+0x2155): undefined reference to `QX11Info::appScreen()'
    16. qvfbx11view.cpp:(.text+0x2276): undefined reference to `QX11Info::display()'
    17. moc_qvfb.o:(.rodata._ZTV4QVFb[vtable for QVFb]+0xb0): undefined reference to `QWidget::x11Event(_XEvent*)'
    18. moc_qvfb.o:(.rodata._ZTV6Zoomer[vtable for Zoomer]+0xb0): undefined reference to `QWidget::x11Event(_XEvent*)'
    19. moc_qvfbview.o:(.rodata._ZTV8QVFbView[vtable for QVFbView]+0xb0): undefined reference to `QWidget::x11Event(_XEvent*)'
    20. moc_qvfbview.o:(.rodata._ZTV16QVFbAbstractView[vtable for QVFbAbstractView]+0xb0): undefined reference to `QWidget::x11Event(_XEvent*)'
    21. moc_qvfbratedlg.o:(.rodata._ZTV14QVFbRateDialog[vtable for QVFbRateDialog]+0xb0): undefined reference to `QWidget::x11Event(_XEvent*)'
    22. moc_gammaview.o:(.rodata._ZTV9GammaView[vtable for GammaView]+0xb0): more undefined references to `QWidget::x11Event(_XEvent*)' follow
    23. collect2: ld returned 1 exit status
    24. make: *** [../../bin/qvfb] Error 1
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    How to get rid of the rest?Any suggestions?
    Thanks.
    Last edited by rishiraj; 1st April 2009 at 05:59.
    If everything seems to be going well, you have obviously overlooked something.
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  4. 1st April 2009, 06:29 #4
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    rishiraj
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    Default

    ok,pretty silly of me...I was using qmake associated with Qt-embedded.Changed it to qmake for Qt-4.4.3.But,still showing some messages ...please advice.
    Qt Code: 
    1. [root@localhost qvfb]# qmake qvfb.pro
    2. [root@localhost qvfb]# make
    3. g++ -Wl,-rpath,/usr/local/Trolltech/Qt-4.4.3/lib -o ../../bin/qvfb qvfb.o qvfbview.o qvfbratedlg.o main.o qanimationwriter.o qvfbprotocol.o qvfbshmem.o qvfbmmap.o qlock.o qwssignalhandler.o deviceskin.o qvfbx11view.o x11keyfaker.o moc_qvfb.o moc_qvfbview.o moc_qvfbratedlg.o moc_gammaview.o moc_qvfbprotocol.o moc_qvfbshmem.o moc_qvfbmmap.o moc_deviceskin.o moc_qvfbx11view.o moc_x11keyfaker.o qrc_qvfb.o qrc_ClamshellPhone.o qrc_PDAPhone.o qrc_SmartPhone2.o qrc_SmartPhone.o qrc_SmartPhoneWithButtons.o qrc_TouchscreenPhone.o qrc_Trolltech-Keypad.o qrc_Trolltech-Touchscreen.o qrc_PortableMedia.o    -L/usr/X11R6/lib -L/usr/local/Trolltech/Qt-4.4.3/lib -lXtst -lQtOpenGL -L/usr/local/Trolltech/Qt-4.4.3/lib -L/usr/X11R6/lib -lQtGui -lpng -lSM -lICE -lXrender -lXrandr -lfreetype -lfontconfig -lXext -lX11 -lQtCore -lz -lm -lrt -ldl -lGLU -lGL -lpthread
    4. qvfb.o: In function `QVFb::skinConfigChosen(int)':
    5. qvfb.cpp:(.text+0x4248): undefined reference to `QFileDialog::exec()'
    6. qvfb.o:(.rodata._ZTV19AnimationSaveWidget[vtable for AnimationSaveWidget]+0xb0): undefined reference to `QWidget::qwsEvent(QWSEvent*)'
    7. qvfb.o:(.rodata._ZTV6Config[vtable for Config]+0xb0): undefined reference to `QWidget::qwsEvent(QWSEvent*)'
    8. qanimationwriter.o: In function `QAnimationWriter::appendFrame(QImage const&, QPoint const&)':
    9. qanimationwriter.cpp:(.text+0x8a3): undefined reference to `QPainter::drawImage(QPointF const&, QImage const&)'
    10. collect2: ld returned 1 exit status
    11. make: *** [../../bin/qvfb] Error 1
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    If everything seems to be going well, you have obviously overlooked something.
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