i.MX ProcessorsのトピックRe: Serial logs are visible in display

Serial logs are visible in display

Hrithik — Mon, 02 Jan 2023 06:50:04 GMT

Hi NXP Team,

We are using iMX8MM on Android 11 OS and it uses LVDS bridge based on i2c for display.
While the device boots up, the serial logs(UART logs) get displayed on the display screen.

Attaching picture for reference:

Hrithik_0-1672642135132.jpeg

This is an undesired behaviour and we want to remove this.

Kindly guide us in removing the same.

Thanks

Re: Serial logs are visible in display

Sanket_Parekh — Tue, 03 Jan 2023 12:18:53 GMT

Hi @Hrithik ,

I hope you are doing well.

Please make sure that you defined the console in defargs environment variable in uboot.

Please provide me with the output of printenv in u-boot if this doesn't resolve the issue.

Thanks & Regards,

Sanket Parekh

Re: Serial logs are visible in display

Hrithik — Tue, 03 Jan 2023 12:47:58 GMT

Hi @Sanket_Parekh ,

Thanks for the response.
Actually, we figured out that the logs were coming from Kernel as we hadnt defined console and stdout-path in kernel dts files as done in uboot.

Configuring the same in kernel solved the issue.

Regards,
Hrithik

Re: Serial logs are visible in display

Sanket_Parekh — Wed, 04 Jan 2023 08:13:48 GMT

Hi @Hrithik

Issue is resolved. Can I mark this case to close state?

Thanks & Regards

Sanket Parekh

Re: Serial logs are visible in display

Hrithik — Thu, 05 Jan 2023 10:33:51 GMT

Hi @Sanket_Parekh

Yes, you can close this case.

Thanks,
Hrithik