Jetson Nano has green light but nothing on monitor

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
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I believe I am using this model: https://www.amazon.com/NVIDIA-Jetson-Nano-Developer-945-13450-0000-100/dp/B084DSDDLT

This is quite old and to be honest I haven’t worked with embedded too much before other than for an internship where I mostly worked on higher-level things rather than low-level systems programming with GPIO, SPI, I2C, etc.

So I just got this Jetson Nano from my office since we were throwing it out anyways, and I’m not really sure what I am doing. I have already wrote the Jetson Nano Developer Kit SD Card Image to a 32 GB microSD card. I am also using the recommended USB power supply from Adafruit.

When booting with display, mouse, and keyboard attached, the green light is constantly on, but my monitor isn’t receiving anything. I have connected my monitor to the Jetson Nano using HDMI. My monitor thinks there is no signal on its HDMI port. I’m not 100% sure or not if my monitor’s HDMI port is converting its HDMI input to VGA or something like that under the hood, but I have read that that could cause problems.

Given what I have read, people have said that I need to see the boot console log, and to try doing something about jumping to reset the board. To be honest, I have no idea how to do this and I don’t know what the required equipment to do this is. I am planning to buy the following:

I also do not have the DC power supply. I only have the micro-USB power supply that was recommended from Adafruit. So if I need the DC power supply to fix this, then I will have to buy that. Please let me know if I need it or not.

Would these 2 products make sense for me? Is there anything else I should buy? Anything else I should try? And also, I saw a tutorial on how to use the serial cable to get the console output, but I do not know how to use the jumpers to reset the board. Is there a good resource for that? Thanks in advance!

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Hi,

Just to clarify. Though you said you don’t know what you are doing here. It looks like you attempt to dump the serial console log. This is correct direction.

The USB-TTL cable you posted in first link should be sufficient to check logs.

With the guidance in this page.

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