GigE FLIR AX5 error "gige: Block/frame 1 is being dropped because a lost packet is unable to be resent" on ubuntu 20.04.4 LTS.

I connected FLIR A35 and try to acquire the image using image acquisition tool. I am repeatedly getting the below error.

I have configured the hardware as per "GigE Vision Image Acquisition Quick Start Guide" for ubuntu/linux. Using Realtek "Semiconductor RTL8111/8168/8411 PCI Express Gigabit Ethernet" and used jumbo frames (mtu 8000). Increased the packet size (7000) and delay (7.2098e+04) . Even with the code its not working. Still getting the above error "gige: Block/frame 1 is being dropped because a lost packet is unable to be resent. There are several possible causes for packets being lost."

For your information, I was able to acquire the raw greyscale image using the below code,

vid = gigecam('192.168.56.2', 'PixelFormat', 'Mono16');

img = snapshot(vid);

I = imadjust(img,stretchlim(img),[]);

imshow(I);

Only having trouble with image acquisition tool. Any help is more than welcome.

[K Hu]

Hello, I met this issue several months before using an A35 with the imaq toolbox.

Here is some advice, the lost packet issue reduces a lot but still occurs randomly.

1. configurations of the Ethernet card: https://www.baslerweb.com/en/sales-support/knowledge-base/frequently-asked-questions/troubleshooting-lost-packets-or-frames-while-using-gige-cameras/29830/
2. configuration of camera properties: video_input.Source.PacketSize; video_input.Source.PacketDelay; it seems matlab provides a code to detect such values, see: https://www.mathworks.com/matlabcentral/answers/91834-how-do-i-calculate-the-packet-delay-for-a-gige-vision-camera-to-prevent-dropped-frames
3. flashdata(video_input) to clear the buffer data stored.

I suppose this issue relies on the computer's performance and maybe the ethernet card: I tried to use a gentl camera to achieve a video capture by saving the RGB matrix in a variable, the lost packet issue occurred in one hours. On the other hand, the system works for more 10 hours without any issue....

[K Hu]

another document that i read:https://www.flir.quebec/globalassets/support/iis/application-notes/tan2015016-image-consistency-errors.pdf

hope that helps.

[Caps]

Thanks @K Hu for the answer. It helped a lot. Forgot to thank you before.