Realsense camera detected by the system but not by realsense-viewer (Linux)

[LeVraiBoris]

librealsense	2.55.1 RELEASE
OS	Linux

Realsense camera (sr305) is not detected by realsense-viewer :

• The camera is on an externally powered USB3 hub (plugin directly into the computer does not help).
• The computer is a high end desktop workstation
• The camera is detected by the kernel:

#lsusb
Bus 002 Device 003: ID 0bda:0328 Realtek Semiconductor Corp. USB3.0-CRW
Bus 002 Device 005: ID 8086:0b48 Intel Corp. Intel(R) RealSense(TM) Depth Camera SR305
Bus 002 Device 004: ID 05e3:0612 Genesys Logic, Inc. Hub
Bus 002 Device 002: ID 0bda:0411 Realtek Semiconductor Corp. Hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 05e3:0610 Genesys Logic, Inc. Hub
Bus 001 Device 002: ID 0bda:5411 Realtek Semiconductor Corp. RTS5411 Hub
Bus 001 Device 006: ID 413c:2110 Dell Computer Corp. Dell Wired Multimedia Keyboard
Bus 001 Device 005: ID 413c:1010 Dell Computer Corp. USB 2.0 Hub [MTT]
Bus 001 Device 003: ID 046d:c01b Logitech, Inc. MX310 Optical Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

• The kernel module is up and running:

#modinfo uvcvideo |grep version
version:        1.1.1-realsense-1.3.26
srcversion:     A167E8DAE134FA179F7BFE3
vermagic:       6.5.0-41-generic SMP preempt mod_unload modversions 

• The camera can be used as a normal RGB Webcam
• Still Realsense-viewer does not find it :

03/07 18:34:04,417 INFO [123399045426368] (backend-v4l2.cpp:753) Enumerating UVC video0 realpath=/sys/devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8.2/2-8.2.4/2-8.2.4:1.0/video4linux/video0
 03/07 18:34:04,418 INFO [123399045426368] (backend-v4l2.cpp:753) Enumerating UVC video1 realpath=/sys/devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8.2/2-8.2.4/2-8.2.4:1.0/video4linux/video1
 03/07 18:34:04,418 INFO [123399045426368] (backend-v4l2.cpp:753) Enumerating UVC video2 realpath=/sys/devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8.2/2-8.2.4/2-8.2.4:1.2/video4linux/video2
 03/07 18:34:04,418 INFO [123399045426368] (backend-v4l2.cpp:753) Enumerating UVC video3 realpath=/sys/devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8.2/2-8.2.4/2-8.2.4:1.2/video4linux/video3
 03/07 18:34:04,419 INFO [123399045426368] (context.cpp:128) Found 0 RealSense devices (0xff requested & 0xff from device-mask in settings)

-Running the application as root leads to the same issue.

I don't know what else to try. Any suggestion would be highly appreciated.
Thank you.

[jeezrick]

build librealsense from source

mkdir build && cd build
cmake .. -DBUILD_PYTHON_BINDINGS=true -DBUILD_EXAMPLES=true -DCMAKE_BUILD_TYPE=Release -DFORCE_RSUSB_BACKEND=true -DBUILD_WITH_CUDA=true  && make -j12 && sudo make install

follow issue/13080.

I don't know if you should do this on PC, but it certianly solve this problem for me on jetson orin.

[MartyG-RealSense]

Hi @LeVraiBoris Official support for SR300-type cameras continued up until SDK 2.54.2. Please try installing librealsense 2.54.2 instead of 2.55.1.

From the release notes for 2.55.1:

[LeVraiBoris]

Downloaded version 2.50 from here:
https://github.com/IntelRealSense/librealsense/releases/tag/v2.50.0
And compiled with:

$ cd librealsense-2.50.0
$ mkdir build && cd build
$ cmake .. -DBUILD_PYTHON_BINDINGS=true -DBUILD_EXAMPLES=true -DCMAKE_BUILD_TYPE=Release && make -j12 && sudo make install

This is working !
Thank you very much.

[MartyG-RealSense]

You are very welcome. I'm pleased that I could help. Thanks very much for the update!