computer screen not turn on

[Sdrjw]

when i use SendMessage(HWND_BROADCAST，WM_SYSCOMMAND，SC_MONITORPOWER，0x0002 ）to turn off screen, quickly to move mouse,it will turn on, but it not operate for a long time when i move mouse again screen not turn on,computer is not in sleep(checked byowercfg /spr)powercfg /a out put S3i print a log WM_SYSCOMMAND "GUID_CONSOLE_DISPLAY_STATE" it show turn,but i can not see screen on

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