How to map LCD fb to hdmi fb

[yyuan]

hi

now i want to map lcd fb to hdmi fb.

i don`t know how to do it.

do you know?

please help me.

thank you

[Rita_Wang]

Hi,

Could you tell me which board and BSP are you using?

Have a nice day

Rita

[yyuan]

hi  

thank you

i use imax6q  and kernel is 4.1.15

do you have any idea?

thank you very much

[Rita_Wang]

The default android BSP support dual display. But Linux BSP do not support only support video display on second screen.

[yyuan]

hi

yes   i want to support video and qt and others display on second screen in Linux BSP.

do you have any solution?

 i want to map lcd fb to hdmi fb , but I don't know where to modify it.

can you gave me any idea?

do you know how to add OSD in video?    such as  geographic coordinate information, etc.

this is my second question.

thank you

[Rita_Wang]

About the OSD I am not familiar with it , and find the link, hope this can do help for you.

how osd work on imx6q? 

[yyuan]

do you know using OpenCV、OpenCL  in imax6q? 

can you draw with them?

thank you

[Rita_Wang]

Hi,

OpenCL Hello World 

Setting Up OpenCV in i.MX6 Based Boards 

These could do help for you. And the document in our website you also can refer to .

Have a nice day

Rita

[yyuan]

hi

thank you very much

i don`t know some thing.

OpenCV  OpenCL  OpenGL  ,how  are they different?    whice one uses hardware acceleration?

thank you 

[Rita_Wang]

About the OpenCV  OpenCL  OpenGL you can search on net and there is the i.MX_Graphics_User's_Guide you can refer to. Hope this can do help for you.

[yyuan]

thank you

[yyuan]

thank you very much

[Rita_Wang]

The linux BSP can not support you need , map lcd fb to hdmi fb. Videos can play back on the two screen.

[Rita_Wang]

You want to realize LCD and HDMI dual display?

[yyuan]

hi

yes   i want to display lcd and hdmi dual display.