Can't work Qt Embedded applications

I tried “14.5 Create Qt Embedded applications using QTDesigner”.

I was able to build.

Console

:
:
arm-linux-g++ -c -pipe -g -Wall -W -D_REENTRANT -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -I/usr/local/DigiEL-5.9/x-tools/arm-cortex_a8-linux-gnueabi/bin/mkspecs/qws/linux-arm-g++ -I. -I/usr/local/DigiEL-5.9/x-tools/arm-cortex_a8-linux-gnueabi/arm-cortex_a8-linux-gnueabi/sysroot/usr/include/QtCore -I/usr/local/DigiEL-5.9/x-tools/arm-cortex_a8-linux-gnueabi/arm-cortex_a8-linux-gnueabi/sysroot/usr/include/QtNetwork -I/usr/local/DigiEL-5.9/x-tools/arm-cortex_a8-linux-gnueabi/arm-cortex_a8-linux-gnueabi/sysroot/usr/include/QtGui -I/usr/local/DigiEL-5.9/x-tools/arm-cortex_a8-linux-gnueabi/arm-cortex_a8-linux-gnueabi/sysroot/usr/include -Idebug -I. -o debug/moc_qt_hello.o debug/moc_qt_hello.cpp
from /usr/local/DigiEL-5.9/x-tools/arm-cortex_a8-linux-gnueabi/arm-cortex_a8-linux-gnueabi/sysroot/usr/include/QtGui/QWidget:1,
from debug/…/qt_hello.h:34,
from debug/moc_qt_hello.cpp:10:
/usr/local/DigiEL-5.9/x-tools/arm-cortex_a8-linux-gnueabi/arm-cortex_a8-linux-gnueabi/sysroot/usr/include/QtCore/qstring.h:101: note: the mangling of ‘va_list’ has changed in GCC 4.4
arm-linux-g++ -o qt_hello debug/main.o debug/qt_hello.o debug/moc_qt_hello.o -L/usr/local/DigiEL-5.9/x-tools/arm-cortex_a8-linux-gnueabi/arm-cortex_a8-linux-gnueabi/sysroot/usr/lib -lQtGui -lQtNetwork -lQtCore -lpthread
make[1]: ディレクトリ `/home/chung/workspace/qt_hello’ から出ます

But, it did not work.

Remote Console

Black display

What is insufficient?

env : Windows7>VMware>ubuntu12.04

I believe http://www.digi.com/support/kbase/kbaseresultdetl?id=3508 will answer your issue