Zed 2i crash and Video Contrast/Brightness issue

Software
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1

Hi,

We are using Zed 2i Stereo Camera (Polarizer:With FOV:2.1mm). But we met below two issues.

  1. Camera Freezing During Operation
    ■ Environment
  • OS: Windows 10
  • ZED version 5.0.5+gpu5070 / ZED version 5.0.2+gpu4070 / ZED version 4.2.1+gpu4070

■ Symptoms

  • The camera suddenly stops updating the video feed during operation.
  • The issue is not resolved until the application is restarted or the camera is reconnected.

■ Frequency of Occurrence

  • In some cases, it occurs within approximately 30 minutes.
  • In other cases, it occurs after more than 7 days of normal operation.
  • A clear pattern regarding specific times or conditions has not yet been identified.

Attachment: Image file showing the frozen state.

camer stop error_log
camer stop error_log934×538 111 KB

  1. Abnormal Camera Video Contrast/Brightness
    ■ Environment
  • OS: Windows 10
  • ZED version 5.0.5+gpu5070

■ Symptoms

  • Occurs at startup.
  • Despite the same environment, the video contrast and overall brightness change abnormally.
  • Excessively dark or contrast-broken video is output.
  • Refer to the normal video and the video when the abnormality occurs.
    Attachment:
    Video file showing the abnormal phenomenon
    Normal video image (or video) file Version 5.0.5+gpu5070

■ Symptoms

  • Occurs at startup

  • Despite the same environment, the contrast and overall brightness of the video change abnormally.

  • The output video is excessively dark or has broken contrast.

  • Refer to the normal video and the video where the problem occurred.

  • Attachments:
    Video file exhibiting the abnormal behavior

error video

  • Normal video image file

Brightness and contrast issues 2025_12_29 15_51_normal image
Brightness and contrast issues 2025_12_29 15_51_normal image1280×718 162 KB

Thanks,

Best regards,

2

Hi @RyanLee

I recommend that you upgrade to the latest version of the ZED SDK → https://www.stereolabs.com/developers/release

Normally, this happens when the USB connection is not stable (vibrations? shocks?), or it’s disturbed by external electrical noise.

This screenshot confirms connection issues.
Are you using USB3 extenders?

According to the description, this could happen because of different environmental conditions that are normally not perceptible by the human eye, but can cause unpredictable behaviors with a computer video system.

What’s your setup regarding gain and exposure? Are they set to automatic or do you use manual settings?

A workaround could be to set the Region of Interest for Automatic Gain and Exposure to a zone of the image that you know it does not change during the operations, a part of the machinery for example.