AMD Xilinx Kria KV260 Vision AI Starter Kit

It is a bummer you are having an issue with your board.  The video interface is a nice feature, but is not needed for all of the samples provided by Xilinx.  I would suggest trying to get the smart camera app up and running since this app had not dependency on the HDMI/DisplayPort monitor.  Then you will be able to enjoy some of the goodness that this board can do.

Re: I am having a problem with the Kria KV260 board: no video output

Here's my problem:

The Kria KV260 board that I have does not seem to work properly. There is no video output of any sort regardless of HDMI or DisplayPort use. No video output.

I have tried a number of monitors and cables and other settings, all to no avail. I have also tried to setup and use several versions flavors of VNC and Remote Desktop, but I get no output either.

I have tried Ubuntu and PetaLinux. No video output.

Let me also add:

Let me add some more information regarding what I have done and the problem I am having with the Kria KV260 kit:

I would like to clarify that there’s no video output from the board via the HDMI or DisplayPort video output. There’s also no graphical interface through any of the VNC flavors that have tried.

I can still access the board via the serial port and via secure shell (ssh). Therefore the board itself is not dead and I can interface with it, but there is no video output. There’s no graphical interface available.

Also, I have updated the firmware as recommended, and I have put Ubuntu and PetaLinux on the flash card. Same behavior for both Linux flavors.

If anyone can offer some help, I'd appreciate it. Thank you.

I found the same issue. Xilinx did note the need to update the firmware in their getting started guide. This note did not link to directions, so a level of research was needed just to boot. 

In Xilinx's defence, it is critical to have the first stage boot loader and the operating system in sync. There are many settings that define how the device works that can only be modified during the first stage. This is a hard problem considering these are stored in different memories, one non-volatile and one removable.

It would be nice to have a clear link in the note to the instructions to fix this with a "clear use this version with this version of Ubuntu". Even better would be to add the steps to update to the start guide. It would also be nice to have a special image that only installed the updated firmware on boot. So the instructions would be burn this, boot, burn Ubuntu, boot.

Ultimately the information to fix this was published and available; this allowed both of us to overcome this issue and boot Ubuntu.

Some might say I talk to myself too much, but that is okay, because it is true.

Success!  I have the Ubuntu GUI up and running. I had problems with the ubuntu user password, so I took out the SD Card and put in my computer and edited the /etc/shadow to have no password for root and ubuntu.  Booted back and get maintenance mode where I set the root and ubuntu passwords to my liking.  

Now to have fun!

Answering some of my own questions..

1. Need to update the firmware. I did this via the firmware button and web interface
2. Have to change the label on the SD Card (ext4 partition) to "writable"

Now I have it booted to a root@ubuntu: command prompt

Just looking to see if anyone got their board to boot yet with Ubuntu.  From what I can tell you download the special Ubuntu for the Xilinx, but the instructions say download the image. We, there is not an image.  There are two rootfs to be placed on an ext4 filesystem, depending on your preference of compression (and to add to the confusion) and a System-boot based on a FAT filesystem.  So I took an SD card and made a system-boot FAT and put that there and created an EXT4 and put the rootfs there.

Booting starts here...

switch to partitions #0, OK
mmc1 is current device
Scanning mmc 1:1...
Found U-Boot script /boot.scr.uimg
5980 bytes read in 16 ms (364.3 KiB/s)
## Executing script at 20000000
Configuring the cma value based on the board type
ZynqMP SMK-K26 Rev1/B/A: No match
ZynqMP SMK-K26 Rev1/B/A: No match
cma=1000M
Loading image.fit
74448580 bytes read in 8963 ms (7.9 MiB/s)
## Loading kernel from FIT Image at 10000000 ...
Using 'conf-zynqmp-smk-k26-revA' configuration
Trying 'kernel-1' kernel subimage
Description: Ubuntu kernel

Booting fails here...

[ 6.351160] 0x000002240000-0x000002250000 : "SHA256"
[ 6.364173] 0x000002250000-0x000004000000 : "User"
[ 6.496472] random: fast init done
[ 6.501701] da9121 0-0033: Device detected (device-ID: 0x05, var-ID: 0x21, DA9131)
[ 6.551966] da9121 0-0032: Device detected (device-ID: 0x05, var-ID: 0x20, DA9130)
[ 6.919637] random: crng init done
[ 8.751137] async_tx: api initialized (async)
[ 35.820889] da9131_buck1: disabling

This is my first attempt and I will be testing more today, but if someone has something working already, please share.

KV260 is a pretty good board for computer vision developer.

The lab at my work is full of test equipment with noisy fans so I am sure the Kria would blend in nicely.  But at home where I want some peace and tranquility PWM would come in handy for sure.

The fan on the Kria is too noisy if you work in a quiet work environment. One of the first things you learn with the Kria out of necessity is to control the fan via PWM using the SoC temperature as a signal.

Impressive looking board.  We're all familiar with Moore's Law, but are we entering a new era where fan sizes will double every 18 months. 

If so it begins with that very substantial orange fan.