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Novice
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display over HDMI to VGA converter

I am just trying to view display through micro HDMI cable (one end to the board and the other end to the VGA converter) + HDMI to VGA converter + VGA cable to desktop monitor and verify the visual output. With the above mentioned cables, I see no output on display unit UPON powering the board ON.

Please clarify if this combination is supported by Intel Aero board.

Is it necessary to connect to HDMI monitor only to view the output? Is HDMI to VGA display not supported?

Please clarify.

21 Replies
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Community Manager
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Hi VNMdu,

 

 

Thank you for contacting us. We want to know why you're using this configuration instead of the recommended one. The recommended solution to view the display is just connecting a micro HDMI end of cable to the Intel Aero Compute Board and other end of the cable to HDMI monitor. Unfortunately, I don't have an HDMI to VGA converter so that I can test your scenario, but perhaps, other community users who have tested a similar setup can share their input.

 

 

On a side note, I've seen that, not specifically of the Aero, but related to HDMI, that using an adapter is much more problematic that just using a direct connection. It's likely something similar is happening here. If possible, I'd encourage you to use the connection specified in the guide.

 

 

Regards,

 

-Sergio A

 

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Novice
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Thanks for the answer.

Managed to arrange HDMI monitor and tried connecting to it through micro HDMI to HDMI converter + HDMI to HDMI cable, but display is still not UP in TV monitor. All I see is that "No Signal" in HDMI TV monitor.

Please guide us what we are missing. It would be helpful if you could share the details of micro HDMI to HDMI cable that you are using.

Here is the pic of the setup done.

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Community Manager
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Hi VNMdu,

 

 

Of course, the cable we use to connect the Aero to the monitor is a Micro HDMI to HDMI cable. You can see this information here: https://github.com/intel-aero/meta-intel-aero/wiki/Quickstart-Guide on the how to get to a console via HDMI section.

 

 

Let us know if this is what you were looking for.

 

 

-Sergio A

 

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Novice
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Thank you for the answer.

1. I never flashed any new image in to the board. Using the board with the default image only.

2. Can you please get me the specification of micro HDMI to HDMI cable ( HDMI standard 2.0? & bandwidth) that is being supported? It would be helpful if you could get me the link for the specification.

Note: Board is up as I am able to log in to the board via SSH - HDMI display only not successful.

Thank you.

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Community Manager
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I looked online for the cable specifications, but couldn't find the specifications of the cable I use. The cable I use is a "Rankie hdmi to micro hdmi", in case you want to look it up. You can see more information in the first several search results if you Google "Rankie hdmi to micro hdmi". I hope you find this information useful.

Regards,

 

-Sergio A

 

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Novice
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Have ordered micro HDMI cable that supports 1.4b std. Shall verify with it. Do I need HDMI monitor for updating the image?

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Community Manager
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Hi VNMdu,

 

 

The HDMI monitor is listed as a hardware prerequisite. You can see more information on the requisites and the flashing procedure in the "Flash Intel Aero Image" here: https://github.com/intel-aero/meta-intel-aero/wiki/Quickstart-Guide .

 

 

Let us know your results after receiving the micro HDMI cable.

 

 

 

-Sergio A

 

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Novice
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From the given link, I understand that HDMI monitor is not required.

Choice 1: Connect a USB key only

Please confirm.

I am planning to upgrade BIOS and OS version.

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Novice
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aero-update-reboot.py script is not found in our board. So we need to follow the old procedure to upgrade?

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Community Manager
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Hi VNMdu,

 

 

We want to clarify our previous reply. The HDMI monitor is required if you want to update the flash the image locally. This is because you'd need to type some commands and see the monitor's output.

 

 

The "Choice 1: Connect a USB key only" will flash the system remotely. This means that you can do it using ssh. Using this method an HDMI monitor is not required, however, you'd still need to use a computer to connect remotely to the Aero. I hope I've clarified this misunderstanding.

 

 

In regards to your second question, you should be able to use aero-reboot-update.py if you've done the previous steps in the guide. The issue may be related to the OS version you're using. Use aero-get-version.py and let us know the output.

 

 

Regards,

 

-Sergio A

 

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Novice
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aero-get-version.py - This script is not found in our board. 

https://github.com/intel-aero/meta-intel-aero/wiki/02-Initial-Setup# flashing-intel-aero-linux-distribution 02 Initial Setup · intel-aero/meta-intel-aero Wiki · GitHub

Reg. choice1 : "The "Choice 1: Connect a USB key only" (No HDMI monitor)

We will login (operate commands) to the board using SSH connection and flash images (.rpm and .iso) from USB connected to USB OTG.

This is what we are going to follow. Thanks.

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Community Manager
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Go ahead and follow the instructions on the guide to flash the BIOS and OS. Once the BIOS is flashed, you should be able to use aero-get-version.py.

 

 

Keep us updated on your progress.

 

 

-Sergio A

 

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Novice
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Hi,

I was able to upgrade BIOS of 1.3.1 version successfully.

When I was updating .iso image by following the approach detailed at https://github.com/intel-aero/meta-intel-aero/wiki/02-Initial-Setup# flashing-intel-aero-linux-distribution 02 Initial Setup · intel-aero/meta-intel-aero Wiki · GitHub

I got below error message.

mkdir -p /tmp/{iso,newroot}

mount -o ro /dev/sda1 /tmp/iso

mount -o loop,ro /tmp/iso/rootfs.img /tmp/newroot

/tmp/newroot/usr/sbin/aero-reboot-update.py

File "/tmp/newroot/usr/sbin/aero-reboot-update.py", line 21 in

import argparse

ImportError: No module named argparse

sh-4.3#

What should we do now?

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Community Manager
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Hi

 

 

I believe those steps are not necessary at this point. According to the guide, these commands should be used if you have firmware v1.2 or older. Since you're using v1.3.1, there's no need to use those commands, but rather aero-reboot-update.py.

 

After reboot, you should be greeted with the new version. Please send us the output of the command aero-get-version.py to confirm the BIOS was properly flashed.

 

 

We'll be waiting for your response.

 

 

Regards,

 

-Sergio A

 

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Novice
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Hi Sergio,

Thanks for the response.

aero-reboot-update.py. is not found.

That's why we followed the below method and ended-up with the errors.

mkdir -p /tmp/{iso,newroot}

mount -o ro /dev/sda1 /tmp/iso

mount -o loop,ro /tmp/iso/rootfs.img /tmp/newroot

/tmp/newroot/usr/sbin/aero-reboot-update.py

File "/tmp/newroot/usr/sbin/aero-reboot-update.py", line 21 in

import argparse

ImportError: No module named argparse

sh-4.3#

aero-get-version.py too not found. 

However, we just pushed this file alone in to the board and executed. All we see is that "UNKNOWN"

BIOS Version = unknown

OS version = unknown

What should we do?

From the boot logs, I see that BIOS version as "Aero-01.00.12-Prod 12/9/2016"

Please respond. We are waiting for the response.

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Community Manager
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Hi VNMdu,

 

 

This is not supposed to happen. We tested both on "OS_VERSION = Poky Aero (Intel Aero Linux Distro) 1.3.1 (krogoth)" and "OS_VERSION = Poky Aero (Intel Aero Linux Distro) 1.4.0-dev (pyro)" and you should be able to run the command aero-get-version.py and receive the BIOS Version, the OS Version, Airmap version and FPGA version as an output. If this is not what you receive, there's probably an error with the steps done in https://github.com/intel-aero/meta-intel-aero/wiki/02-Initial-Setup .

 

 

Please go through these steps again and send us screenshots of the process, to confirm everything went as it should. Some useful screenshots would be after checking the md5 checksum, the results after mounting the USB drive and installing rpm, and after the reboot, to confirm the UEFI BIOS has updated successfully.

 

 

After this is done, try again to use the command aero-get-version.py.

 

 

Regards,

 

-Sergio A

 

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Novice
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Hi Serigo,

Thanks for the response.

mkdir -p /tmp/{iso,newroot}

mount -o ro /dev/sda1 /tmp/iso

mount -o loop,ro /tmp/iso/rootfs.img /tmp/newroot

/tmp/newroot/usr/sbin/aero-reboot-update.py

File "/tmp/newroot/usr/sbin/aero-reboot-update.py", line 21 in

import argparse

ImportError: No module named argparse

sh-4.3

We were able to solve that error by manually installing the arg.parse python package on the Intel board.

aero-get-version.py returns below. 

BIOS = 01.00.12_Prod

OS Version = Poky Aero 1.3.1

AIRMAP = 1.8

FPGA = 0xff

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Community Manager
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Thank you for letting us know the problem is solved and for sharing your results with the community. Don't hesitate to come back if help is needed.

 

 

Regards,

 

-Sergio A

 

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Beginner
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How did you install argparse on the Aero? I am getting the same error, and the usual methods for installing python packages don't seem to work (e.g., pip, apt-get).

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