Hello everyone
I’m new on Qt on arm linux. I’m trying to cross compile the newest version Qt 5.4 for Beaglebone Black(BBB). I think I almost successed because I finished configure and make of Qt 5.4 based on root file system on BBB. When I try to run an example, the GUI shows up but the linux is dead and there is no response from keyboard and mouse. The only thing I can do is to reset BBB. Could someone help me with this problem? I will describe my steps as follow: 1. Build Ubuntu SD card For this step, I followed the following website: *https://eewiki.net/display/linuxonarm/BeagleBone+Black* <https://eewiki.net/display/linuxonarm/BeagleBone+Black> Kernel version: Linux arm 3.18.0-bone1 #1 Mon Dec 8 23:08:59 EST 2014 armv71 armv71 armv71 GNU/Linux Root file system: Ubuntu 14.04.1 LTS Cross compiler: arm-linux-gnueabihf-gcc (crosstool-NG linaro-1.13.1-4.9-2014.09 – Linaro GCC 4.9-2014.09) 4.9.2 20140904 (prerelease) The SD card just works fine. 2. Build and install SGX driver Also, I followed the SGX part of the following website *https://eewiki.net/display/linuxonarm/BeagleBone+Black* <https://eewiki.net/display/linuxonarm/BeagleBone+Black> The demo program OGLES2ChameleonMan works fine. 3. Build Qt 5.4 (1) Download Qt 5.4 source qt-everywhere-opensource-src-5.4.0.tar.gz *http://download.qt-project.org/archive/qt/5.4/5.4.0/single/* <http://download.qt-project.org/archive/qt/5.4/5.4.0/single/> (2) Configure Qt 5.4 copy the newest cross compiler library to root file system (otherwise the configure has errors) 1. sudo cp -r <some dir>/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux /arm-linux-gnueabihf/libc/* <some dir>/rootfs edit /qtbase/mkspecs/devices/linux-beaglebone-g++/qmake.conf 1. Ln 29: COMPILER_FLAGS = -march=armv7-a -mtune=cortex-a8 -mfpu =neon -mfloat-abi=hard 2. Ln 39: QMAKE_INCDIR_EGL = $$[QT_SYSROOT]/usr/include/OGLES2 configure 1. sudo ./configure -prefix /home/ubuntu/*Qt* <http://qt-project.org/doc/Qt.html> -device linux-beaglebone-g++ -device-option CROSS_COMPILE=/home/albert/arm-dev/kernel_dev/bb-kernel/dl/gcc-linaro-arm -linux-gnueabihf-4.9-2014.09_linux/bin/arm-linux-gnueabihf- -sysroot / media/albert/rootfs -release -opensource -confirm-license -opengl es2 -v configure result 1. Configure summary 2. 3. Building on: linux-g++ (x86_64, CPU features: mmx sse sse2) 4. Building for: devices/linux-beaglebone-g++ (arm, CPU features: neon) 5. Platform notes: 6. 7. - Also available for Linux: linux-kcc linux-icc linux-cxx 8. 9. qmake vars .......... styles += mac fusion windows DEFINES += QT_NO_MTDEV DEFINES += QT_NO_LIBUDEV QMAKE_X11_PREFIX = /usr sql-drivers = sql-plugins = sqlite qmake switches ......... 10. 11. Build options: 12. Build parts ............ libs examples 13. Mode ................... release 14. Using C++11 ............ yes 15. Using gold linker....... yes 16. Using PCH .............. yes 17. Target compiler supports: 18. Neon ................. yes 19. 20. *Qt* <http://qt-project.org/doc/Qt.html> modules and options: 21. *Qt* <http://qt-project.org/doc/Qt.html> D-Bus ............... runtime 22. *Qt* <http://qt-project.org/doc/Qt.html> Concurrent .......... yes 23. *Qt* <http://qt-project.org/doc/Qt.html> GUI ................. yes 24. *Qt* <http://qt-project.org/doc/Qt.html> Widgets ............. yes 25. Large File ............. yes 26. QML debugging .......... yes 27. Use system proxies ..... no 28. 29. Support enabled for: 30. Accessibility .......... yes 31. ALSA ................... no 32. CUPS ................... no 33. Evdev .................. yes 34. FontConfig ............. no 35. FreeType ............... yes (bundled copy) 36. Glib ................... no 37. GTK theme .............. no 38. HarfBuzz ............... yes (bundled copy) 39. Iconv .................. yes 40. ICU .................... no 41. Image formats: 42. GIF .................. yes (plugin, using bundled copy) 43. JPEG ................. yes (plugin, using bundled copy) 44. PNG .................. yes (in *QtGui* <http://qt-project.org/doc/QtGui.html>, using bundled copy) 45. journald ............... no 46. mtdev .................. no 47. Networking: 48. getaddrinfo .......... yes 49. getifaddrs ........... yes 50. IPv6 ifname .......... yes 51. OpenSSL .............. no 52. NIS .................... yes 53. OpenGL / OpenVG: 54. EGL .................. yes 55. OpenGL ............... yes (OpenGL ES 2.0+) 56. OpenVG ............... no 57. PCRE ................... yes (bundled copy) 58. pkg-config ............. no 59. PulseAudio ............. no 60. QPA backends: 61. DirectFB ............. no 62. EGLFS ................ yes 63. KMS .................. no 64. LinuxFB .............. yes 65. XCB .................. no 66. Session management ..... yes 67. SQL drivers: 68. DB2 .................. no 69. InterBase ............ no 70. MySQL ................ no 71. OCI .................. no 72. ODBC ................. no 73. PostgreSQL ........... no 74. SQLite 2 ............. no 75. SQLite ............... yes (plugin, using bundled copy) 76. TDS .................. no 77. udev ................... no 78. xkbcommon .............. no 79. zlib ................... yes (bundled copy) make and make install just work fine. 4. Run Qt examples Before run Qt examples, again, I need to copy some cross compiler’s lib file into SD card, otherwise it has errors when execute program. 1. sudo cp -r <some dir>/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux /arm-linux-gnueabihf/lib <some dir>/rootfs/home/ubuntu On BBB, I neet to export LD_LIBRARY_PATH 1. export LD_LIBRARY_PATH=/rootfs/home/ubuntu Now, I can run Qt examples 1. cd /*Qt* <http://qt-project.org/doc/Qt.html>/examples/quick/demos/ stocqt 2. ./stocqt At this moment, the GUI shows on the screen. However, there is no mouse cursor and the keyboard doesn’t response. I can still see the terminal’s text cursor flashing. The only thing I can do now is to reset BBB. I also tried several other examples and all yield the same result. No mouse cursor and keyboard response. Does any one know what should I do to fix this problem? Thanks! -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
