i.MX ProcessorsのトピックRe: How to enable LVDS-HDMI on imx8quadxplus evk kit

How to enable LVDS-HDMI on imx8quadxplus evk kit

hemanthemb — Thu, 05 Dec 2024 12:22:39 GMT

we are using IMX8Quadxplus-mek evaluation kit with custoom Yocto image ,we want to use Lvds-hdmi bridge adapter in that board but during checking we identified

[ 3.257459] it6263 17-004c: Probe failed. Remote port 'lvds-channel@0' disabled
[ 3.369227] it6263 18-004c: Probe failed. Remote port 'lvds-channel@0' disabled

so to avoid this to enable the the Lvds-hdmi which device tree file need to modify can you please help this out.

Thanks in Advance,

hemanthemd.

Re: How to enable LVDS-HDMI on imx8quadxplus evk kit

JorgeCas — Thu, 05 Dec 2024 16:06:51 GMT

Hello,

Please connect the LVDS-HDMI card in LVDS0 connector as is in the next image:

JorgeCas_0-1733414696204.png

Then you need to use imx8qxp-mek.dtb device tree.

Set the U-Boot environment variable to imx8qxp-mek.dtb

=> setenv fdtfile imx8qxp-mek.dtb => saveenv => boot

Best regards.

Re: How to enable LVDS-HDMI on imx8quadxplus evk kit

hemanthemb — Wed, 11 Dec 2024 16:27:33 GMT

Hi @JorgeCas , @nxp
Thanks for the reply.
Media.jpg

we followed the same procedure

setenv fdtfile imx8qxp-mek.dtb
=> saveenv
=> boot

but we are getting the error as I attached. kindly assist us to enable LVDS-HDMI via IT6263 driver it's a priority task Media (1).jpg

Re: How to enable LVDS-HDMI on imx8quadxplus evk kit

JorgeCas — Wed, 11 Dec 2024 18:08:35 GMT

Hello,

It is working as expected in my side, please try to re-flash the image and test again.

JorgeCas_0-1733940490574.jpeg

Best regards.

Re: How to enable LVDS-HDMI on imx8quadxplus evk kit

hemanthemb — Thu, 12 Dec 2024 01:49:36 GMT

Hi,
thanks for the positive reply,
are you using custom yocto for the board or pre built image
kindly share the image or (.dtb files) or local.conf or major change where we need to do just assist us to test the same with our hardware hope will share the positive info.

thanks.

Re: How to enable LVDS-HDMI on imx8quadxplus evk kit

JorgeCas — Thu, 12 Dec 2024 15:45:07 GMT

Hello,

I used the pre-built image, and I didn't do any change, the device tree by default is imx8qxp-mek.dtb

Best regards.

Re: How to enable LVDS-HDMI on imx8quadxplus evk kit

hemanthemb — Thu, 12 Dec 2024 15:50:26 GMT

hi,
can you share the defualt image which will be very helpful for us.

thanks

Re: How to enable LVDS-HDMI on imx8quadxplus evk kit

JorgeCas — Thu, 12 Dec 2024 15:56:54 GMT

Hello,

I used this image:

Embedded Linux for i.MX Applications Processors | NXP Semiconductors

It seems that there is an issue in the page, it should be solved soon.

JorgeCas_0-1734018919588.png

And the command in UUU to flash it was:

uuu uuu.auto

Best regards.

Re: How to enable LVDS-HDMI on imx8quadxplus evk kit

hemanthemb — Thu, 12 Dec 2024 16:02:11 GMT

Hi,
first of all thanks for the quick reply,
i will check that
request:if you have local dowbload kindly share and what challanges you faced if any ruff note attach that too ,
this will be very helpful.
thanks

Re: How to enable LVDS-HDMI on imx8quadxplus evk kit

hemanthemb — Fri, 13 Dec 2024 12:31:07 GMT

Hi,
The imx8qxplus-mek.dtb file which you used can you share that it will be useful.
and with that any challenges faced that also kindly let us know if its possible to share the process(Image).
Thanks.

Re: How to enable LVDS-HDMI on imx8quadxplus evk kit

JorgeCas — Fri, 13 Dec 2024 15:15:39 GMT

Hello,

You need to download it from the website, I cannot share it.

Best regards.

Re: How to enable LVDS-HDMI on imx8quadxplus evk kit

hemanthemb — Tue, 17 Dec 2024 14:42:17 GMT

Hi @JorgeCas,@nxp

we followed the same image which you referred from the nxp site but still we are facing same issue even though we used fdt_file as imx8qxp-mek.dtb but for you as mentioned its working fine without any modifications.

but can you confirm is your board imx8quadxplus -mek kit and used image was same like downloaded from nxp site and have you done anything to enable lvds-hdmi(it6263 driver) becuase in your setup hdmi moniter is working and up.

becuase we are facing same errors which i attached in our previous chat like so can you assist us to overcome .