[root@Sailfish ~]# /usr/lib/qt5/bin/qmlscene -platform hwcomposer main.qml
EGLFS: Screen Info
 - Physical size: QSizeF(154, 90)
 - Screen size: QSize(1024, 600)
 - Screen depth: 32
== hwcomposer module ==
 * Address: 0xb3d10004[  258.660000] ov5640_s_power.............1944...........

 * Module API Version: 1
 * HAL API Version: 100
 * Identifier: hwcomposer
 * Name: SAMSUNG_SLSI slsiap hwcomposer module
 * Author: swpark@nexell.co.kr
== hwcomposer module ==
virtual bool V4l2Device::activate(): /dev/v4l-subdev2 5
virtual bool V4l2Device::activate(): /dev/v4l-subdev0 1
virtual bool V4l2Device::activate(): /dev/video4 2
virtual bool V4l2Device::activate(): /dev/v4l-subdev1 3
virtual bool V4l2Device::activate(): /dev/video5 4
virtual bool V4l2Device::activate(): /dev/v4l-subdev4 8
virtual bool V4l2Device::activate(): /dev/video8 10
virtual bool V4l2Device::activate(): /dev/v4l-subdev5 11
virtual bool V4l2Device::activate(): /dev/video9 12
virtual bool V4l2Device::activate(): /dev/video10 13
v[  258.728000] ov5640_s_stream: enable 0, initialized 1
irtual bool V4l2Device::[  258.736000] ov5640_s_power.............1944...........
activate(): /dev/v4l-subdev6 14
virtual bool V4l2Device::activate(): /dev/v4l-subdev7 15
== hwcomposer device ==
 * Version: 1010001 (interpreted as 1010001)
 * Module: 0xb3d10004
== hwcomposer device ==
QEglScreen 0x1f42c0

QEglWindow 0x2bbbb0: 0x2bb628 0x0

WARNING: void HWComposerNativeWindow::allocateBuffers(): allocated only 0 buffers out of 4
qmlscene: hwcomposer_window.cpp:204: virtual int HWComposerNativeWindow::dequeueBuffer(BaseNativeWindowBuffer**, int*): Assertion `!m_bufList.empty()' failed.
Aborted