# Repeated Realsense malfunctions

**URL:** <https://forum.hello-robot.com/t/repeated-realsense-malfunctions/616>\
**Category:** Ask\
**Created:** [March 1, 2023, 6:00pm UTC](https://forum.hello-robot.com/t/repeated-realsense-malfunctions/616 "2023-03-01T18:00:44Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![srama2512](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.hello-robot.com/srama2512/32/354_2.png) [@srama2512](https://forum.hello-robot.com/u/srama2512)\
**Post date:** [March 10, 2023, 9:28pm UTC](https://forum.hello-robot.com/t/repeated-realsense-malfunctions/616/9 "2023-03-10T21:28:53Z")

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@bshah - Thanks for the suggestions here. I updated the firmware and restarted Stretch. I still observe intermittent disconnections.

Here is the exact error I get:

```auto
ERROR: The device has been disconnected!
.
.
.
An exception has been thrown: xioctl(VIDIOC_S_FMT) failed, errno=5 Last Error: Input/output error
.
.
.
Hardware Notification:IR stream start failure, 1.67847e+12,Error,Hardware Error

```

Here are the details from rs-enumerate-devices:

```auto
~$ rs-enumerate-devices -S
Device Name Serial Number Firmware Version
Intel RealSense D435I 134322074171 05.14.00.00
Device info:
    Name : Intel RealSense D435I
    Serial Number : 134322074171
    Firmware Version : 05.14.00.00
    Recommended Firmware Version : 05.14.00.00
    Physical Port : /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.0/video4linux/video0
    Debug Op Code : 15
    Advanced Mode : YES
    Product Id : 0B3A
    Camera Locked : YES
    Usb Type Descriptor : 3.2
    Product Line : D400
    Asic Serial Number : 134523061170
    Firmware Update Id : 134523061170

```

P.S. I missed seeing this particular issue and created a different one by mistake: [Repeated realsense sensor failures - #2 by srama2512](https://forum.hello-robot.com/t/repeated-realsense-sensor-failures/631/2)

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