想请教一下D1-H的bulidroot显示输出如何改为默认是HDMI

如题,没有屏幕希望能通过HDMI外接显示器显示来调试Qt程序,全志论坛上是说需要该dts,但是为把修改好的dts替换后还是没能成功,串口信息如下。
[12:26:17:769] [ 547.747005] HDMI cable is connected␍␊
[12:26:17:839] [ 547.816762] error: invalid cea_vic code:0␍␊
[12:26:17:842] [ 547.821250] [HDMI2 error]: sink do not support this mode:0␍␊
[12:26:30:736] echo 1 > /sys/class/disp/disp/attr/colorbar␍可能是为没改对地方?bulidroot需要怎么修改为HDMI显示呢?