# Stereo camera is not working

Source: https://forum.modalai.com/topic/1488/stereo-camera-is-not-working
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2022-10-27 18:39:56 UTC by shlee853
Replies: 1 · Views: 611

## shlee853 · 2022-10-27 18:39:56 UTC

Stereo camera is not running of my m500 drone after updating firmware.

I think physical connection is fine and sensors are ok. also, camera server is working. but I cannot get stereo image on VOXL-portal. and when I use voxl-streamer -c stereo, camera server fall FATAL error.

could you please check my log when I run voxl-streamer for stereo?

    

voxl:/$ voxl-camera-server 
    ------ voxl-camera-server: Starting camera server
    	Started Camera: tracking
    	Started Camera: hires
    	Started Camera: stereo
    
    ------ voxl-camera-server: Camera server is now running
    INFO: Camera stereo recieved much newer child than master (51), discarding master and trying again
    INFO: Camera stereo recieved much newer child than master (146505), discarding master and trying again
    INFO: Camera stereo recieved much newer child than master (146472), discarding master and trying again
    
    voxl-camera-server FATAL: Recieved Fatal error from camera: stereo
    	Error sending request 7, ErrorCode: -ENODEV
    ------ voxl-camera-server WARNING: Thread: tracking result thread recieved ESTOP
    ------ voxl-camera-server WARNING: Thread: stereo request thread recieved ESTOP
    ------ voxl-camera-server WARNING: Thread: stereo result thread recieved ESTOP
    ------ voxl-camera-server WARNING: Thread: stereo_child result thread recieved ESTOP
    ------ voxl-camera-server WARNING: Thread: stereo_child request thread recieved ESTOP
    ------ voxl-camera-server WARNING: Thread: hires result thread recieved ESTOP
    ------ voxl-camera-server WARNING: Thread: tracking request thread recieved ESTOP
    ------ voxl-camera-server WARNING: Thread: hires request thread recieved ESTOP
    
    ------ voxl-camera-server INFO: Camera server is now stopping
    WARNING: Deleting buffers: 4 of 16 still in use
    	Stopped Camera: tracking
    WARNING: Deleting buffers: 4 of 16 still in use
    	Stopped Camera: hires
    WARNING: Deleting buffers: 3 of 16 still in use
    	Stopped Camera: stereo
    
    ------ voxl-camera-server INFO: Camera server exited gracefully
    

![f3d0761a-0ad4-4c9a-956a-56f56c892970-image.png](https://forum.modalai.com/assets/uploads/files/1666895921825-f3d0761a-0ad4-4c9a-956a-56f56c892970-image.png) 

this is my firmware

    
    voxl:/$ voxl-version 
    --------------------------------------------------------------------------------
    system-image: 3.8.0
    kernel:       #1 SMP PREEMPT Tue Apr 26 18:08:39 UTC 2022 3.18.71-perf
    --------------------------------------------------------------------------------
    hw version:   VOXL
    --------------------------------------------------------------------------------
    voxl-suite:   0.8.0
    --------------------------------------------------------------------------------
    voxl:/$

## Reply by modaltb (ModalAI staff) · 2023-01-03 19:58:56 UTC

Hi @shlee853 ,

Sorry this is a super old post that got missed, checking in to see if you were able to resolve the issue or not?