Tizen Developers

Hellow everyone:

If you know the reason of this problem,would you tell me how to sovle this problem?

◆Problem
I run TizenIVI 2.0 on target board,TizenIVI graphic screen can successful display.

But when i  change to command console from graphic screen,display windows become black,

there is no word on the display windows.I can not input any command.

I'm using HDMI device.

Please help me,thank you.