Auvidea J120 HDMI output not working. | Also there is no power in the UART port

Autonomous Machines Jetson & Embedded Systems Jetson TX2
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1- Since i can not get in touch with Auvidea support, i hope someone here can help me with my problem. 2 days ago i connected my Jetson TX2 to the J120 and everything was working fine. Suddenly the monitor turned off and it won’t show anything. At first i thought it might be some firmware problem so i re installed the firmware again and still the HDMI output is not working. I thought it might be a hardware problem but everything is working fine when i connect to the J120 remotely from my PC. Any suggestion !!
2- Today i tested out the UART port but it seems there is no power in it. To be more specific, i tried to connect bluetooth module and a Serial module but there is no power in them.
edit: I can receive and transmit data if i connected Tx to Rx directly to each other.

dmesg.txt (66.5 KB)

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MRABAH1991,

Does ethernet still work? Could you ssh to device and get the kernel message with command “dmesg”?

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Sorry for the late reply, here is my dmseg. Also whenever i try to put my message inside a code tag it appears like that.

Attachments in the top.

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I guess it is too long. Please upload it as attachment.

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Done uploading. You can find it attached in my first post.

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For the HDMI, clues are still not enough.

Could you check if there is any new log from dmesg if you hotplug HDMI cable?

If there is no new log, I would suggest if you could move your module to nvidia devkit and see re-check.

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The HDMI on my devkit is working fine.

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According to this error in i2c, I would doubt there is something blocking i2c bus or even hardware issue.

[    3.483810] tegra-i2c 3160000.i2c: no acknowledge from address 0x42
[    3.483996] ina3221x 0-0042: ina3221 reset failure status: 0xffffff87
[    3.484171] ina3221x: probe of 0-0042 failed with error -121
[    3.484688] tegra-i2c 3160000.i2c: no acknowledge from address 0x43
[    3.484867] ina3221x 0-0043: ina3221 reset failure status: 0xffffff87
[    3.485024] ina3221x: probe of 0-0043 failed with error -121