i.MX ProcessorsのトピックRe: How to map LCD fb to hdmi fb

How to map LCD fb to hdmi fb

yyuan — Mon, 15 Apr 2019 05:34:52 GMT

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

Re: How to map LCD fb to hdmi fb

Rita_Wang — Tue, 16 Apr 2019 06:15:46 GMT

Hi,

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

Have a nice day

Rita

Re: How to map LCD fb to hdmi fb

yyuan — Wed, 17 Apr 2019 01:53:38 GMT

thank you

i use imax6q and kernel is 4.1.15

do you have any idea?

thank you very much

Re: How to map LCD fb to hdmi fb

Rita_Wang — Wed, 17 Apr 2019 05:28:11 GMT

You want to realize LCD and HDMI dual display?

Re: How to map LCD fb to hdmi fb

Rita_Wang — Wed, 17 Apr 2019 07:57:19 GMT

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

Re: How to map LCD fb to hdmi fb

yyuan — Wed, 17 Apr 2019 08:21:13 GMT

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

Re: How to map LCD fb to hdmi fb

yyuan — Wed, 17 Apr 2019 08:23:06 GMT

yes i want to display lcd and hdmi dual display.

Re: How to map LCD fb to hdmi fb

Rita_Wang — Thu, 18 Apr 2019 09:39:27 GMT

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

Re: How to map LCD fb to hdmi fb

Rita_Wang — Thu, 18 Apr 2019 09:54:51 GMT

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?

Re: How to map LCD fb to hdmi fb

yyuan — Fri, 19 Apr 2019 00:49:47 GMT

thank you very much

Re: How to map LCD fb to hdmi fb

yyuan — Fri, 19 Apr 2019 01:06:06 GMT

do you know using OpenCV、OpenCL in imax6q?

can you draw with them?

thank you

Re: How to map LCD fb to hdmi fb

Rita_Wang — Fri, 19 Apr 2019 02:48:41 GMT

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

Re: How to map LCD fb to hdmi fb

yyuan — Wed, 24 Apr 2019 03:20:30 GMT

thank you very much

i don`t know some thing.

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

thank you

Re: How to map LCD fb to hdmi fb

Rita_Wang — Tue, 30 Apr 2019 03:43:15 GMT

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.

Re: How to map LCD fb to hdmi fb

yyuan — Tue, 30 Apr 2019 05:40:32 GMT

thank you