V4L2 Problem on imx8QM

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V4L2 Problem on imx8QM

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1,677 Views
CYL
Contributor II

Dear NXP,

We use the L5.4.70_2.3.0_MX8QM Linux release, and follow the guide:https://www.nxp.com.cn/docs/en/user-guide/IMX_LINUX_USERS_GUIDE.pdf

then flash to SD Card:sudo dd if=imx-image-multimedia-imx8qmmek.wic of=/dev/sd bs=1M conv=fsync

Using this SDCard, we can boot the linux os. But, when we check the v4l2 function,  Crash occurred.

Details in the attach file : Crash.TXT,  the dmesg.

Any idea or suggestions?

Best regards

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1 Solution
1,655 Views
CYL
Contributor II

Try to change boot params, works

View solution in original post

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4 Replies
1,656 Views
CYL
Contributor II

Try to change boot params, works

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hsaito
Contributor I

Hello, CYL

 

Sorry, forgive a sudden reply. I'm having the same phenomenon.

Would you tell me about change boot params.

 

Best Regards,

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1,568 Views
CYL
Contributor II

Input below commands in uboot command line:

setenv fdt_file xxxx.dtb(a device tree which include the video-in device, I use the hdmi-in dtb file)

saveenv

boot

 

hope that will take effect for you

1,553 Views
hsaito
Contributor I

Thank you for reply.

I will refer to your procedure.

 

Regards,

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