Application does not display anything on LCD on arm board

0
votes

I have cross compiled Qt 4.7.4 for an ARM board successfully. I have created a sample Qt application for an ARM board and cross compiled that as well.

When I run the app on the actual hardware, I do not see the UI on the LCD screen (but could see the logs provided using qDebug).

At this point, if I reboot the board, the UI of the sample app becomes visible for a second, just before the screen turns off, due to the reboot.

Do you have any suggestions regarding this problem. What could be the possible causes for this?

Regards, Mohan

1
qt

1 Answers

0
votes

I did solve this problem.

Need to change the backlight intensity. Set it to the maximum and UI is visible on the LCD screen.

No changes/update required anything related to Qt.