Issue: Femto Bolt Depth Stream Causes USB Disconnect on DGX Spark (ARM64)

[joe04chen]

Hi,

I updated the Femto Bolt firmware to the latest version (1.1.3) and updated the Orbbec Viewer, but I still cannot open the depth camera.

Every time I enable the depth stream, the system drops the USB connection, and it is impossible to reconnect the device unless I reboot the machine.

My system specifications are:

Platform: NVIDIA DGX Spark (ARM64)

OS: Ubuntu 24.04

Note that I have tested this same camera with a Jetson Thor, and it works there without any issues.

Error msgs:
2026-01-05 16:40:33.050 INFO [5312] [OBSensorExt::startStream@822] startStream@Depth, width=640, height=576, fps=30, format=Y16
[01/05 16:40:33.250977][debug][5312][PropertyServer.cpp:186] Property 40 get as 10|1.4e-44
2026-01-05 16:40:33.251 INFO [5312] [PropertyManager::read@537] read property: 40@Max Diff -> 10
[01/05 16:40:33.251236][debug][5312][PropertyServer.cpp:186] Property 41 get as 50|7e-44
2026-01-05 16:40:33.251 INFO [5312] [PropertyManager::read@537] read property: 41@Max Speckle Size -> 50
[01/05 16:40:33.251865][debug][5312][PropertyServer.cpp:175] Property 47 alias to 2017
[01/05 16:40:42.848427][debug][5336][LinuxUsbPal.cpp:103] Device removed event occurred
[01/05 16:40:42.848431][error][5312][ObLibuvcDevicePort.cpp:307] getXu failed, error code=-4
[01/05 16:40:42.848480][debug][5336][UsbDeviceEnumerator.cpp:123] usb device removed: 6-1-2
[01/05 16:40:42.848485][debug][5336][UsbDeviceEnumerator.cpp:123] usb device removed: 6-1-2
[01/05 16:40:42.848487][debug][5336][UsbDeviceEnumerator.cpp:123] usb device removed: 6-1-2
[01/05 16:40:42.848490][debug][5336][UsbDeviceEnumerator.cpp:128] Current usb device port list:
[01/05 16:40:42.848500][debug][5336][UsbDeviceEnumerator.cpp:89] device list changed: removed=1, current=0
[01/05 16:40:42.848502][debug][5336][UsbDeviceEnumerator.cpp:91] Removed device list:
[01/05 16:40:42.848507][debug][5336][UsbDeviceEnumerator.cpp:93] - Name: FemtoBolt, PID: 0x066B, SN/ID: CL8R353002F
[01/05 16:40:42.848701][info][5479][DeviceManager.cpp:228] Device changed! removed: 1, added: 0
[01/05 16:40:42.948697][error][5312][ObLibuvcDevicePort.cpp:282] setXu failed, error code=-4
[01/05 16:40:43.048830][warning][5312][ObException.hpp:48] Request failed, statusCode: 5, msg: Device response with bad magic , magic=0x0, expectOpCode=0x4252
2026-01-05 16:40:43.050 ERROR [5312] [PropertyManager::read@579] write property failed: 2017@Depth Sensor Exposure(us), ob_device_get_int_property, exceptionType: 7, message: Request failed, statusCode: 5, msg: Device response with bad magic , magic=0x0, expectOpCode=0x4252
[01/05 16:40:43.050107][warning][5479][DeviceBase.cpp:194] Device is deactivated or disconnected while there are still sensors streaming!
[01/05 16:40:43.050134][warning][5312][ObException.cpp:8] Device is deactivated/disconnected!
[01/05 16:40:43.050148][debug][5479][FilterDecorator.cpp:299] Filter@IMUCorrector have been reset
[01/05 16:40:43.050152][debug][5479][FilterDecorator.cpp:284] Filter IMUCorrector destroyed
2026-01-05 16:40:43.050 ERROR [5312] [PropertyManager::syncProperty@396] call isPropertySupported() failed: 1061@AE ROI of depth sensor
[01/05 16:40:43.050168][warning][5312][ObException.cpp:8] Device is deactivated/disconnected!
2026-01-05 16:40:43.050 ERROR [5312] [PropertyManager::syncProperty@396] call isPropertySupported() failed: 191@Disparity Search Range Mode